The two most important chapters in the Koran, are the two most supremacist, intolerant, vicious, inane, ruthless and bloody, namely chapters 9 and 5. Sura 5 is a long screed of hate messaging directed against Christianity. Moslem apologists and their Western leftist/marxist/big brain allies might want to read Sura 5 before proclaiming that the moon cult of Mecca is happiness, rose petals in the air and so deeply concerned with inter-faith co-existence. Idiocy all of it.
My personal favourite Koranic verse is of course 5:33: “The recompense of those who wage war against Allah and His Messenger and do mischief in the land is only that they shall be killed or crucified or their hands and their feet be cut off on the opposite sides, or be exiled from the land. That is their disgrace in this world, and a great torment is theirs in the Hereafter.”
In Koranic fascism making 'mischief in the land' means simply that one is not a Moslem, or one is a member of a real faith and not interested in Islam. If you defend yourself against Moslem fascist aggression you 'wage war against Allah' and must be killed. Simple. To hell with the Christians.
5:72 Surely, they have disbelieved who say: "Allah is the Messiah ['Iesa (Jesus)], son of Maryam (Mary)." But the Messiah ['Iesa (Jesus)] said: "O Children of Israel! Worship Allah, my Lord and your Lord." Verily, whosoever sets up partners in worship with Allah, then Allah has forbidden Paradise for him, and the Fire will be his abode. And for the Zalimun (polytheists and wrongdoers) there are no helpers.
5:73 Surely, disbelievers are those who said: "Allah is the third of the three (in a Trinity)." But there is no ilah (god) (none who has the right to be worshipped) but One Ilah (God -Allah). And if they cease not from what they say, verily, a painful torment will befall the disbelievers among them.
According to this Sura, Christ was just a follower of the Allah thing; was not divine and not part of a Trinity of holiness and divine power. Thus he and his followers have strayed from the true teaching, namely obeisance to the Allah idol.
5:46 And in their footsteps, We sent 'Iesa (Jesus), son of Maryam (Mary) confirming the Taurat (Torah) that had come before him, and We gave him the Injeel (Gospel), in which was guidance and light and confirmation of the Taurat (Torah) that had come before it, a guidance and an admonition for Al-Muttaqun (the pious - see V.2:2).
5:47 Let the people of the Injeel (Gospel) judge by what Allah has revealed therein. And whosoever does not judge by what Allah has revealed (then) such (people) are the Fasiqun (the rebellious i.e. disobedient (of a lesser degree) to Allah.
'We' means Moslems and in particular, Allah and Muhammad, the tag-team of Islam.
Christians are rebellious [5:47] polytheist infidels, who worship the Trinity, have rejected Allah; and have, according to the Koran, despoiled the original Sharia-intention of the Gospels and Torah. As such they doomed to hellfire for disobeying Muhammad and conflating the Allah moon idol of Mecca with Christ.
5:14 And from those who call themselves Christians, We took their covenant, but they have abandoned a good part of the Message that was sent to them. So We planted amongst them enmity and hatred till the Day of Resurrection (when they discarded Allah's Book, disobeyed Allah's Messengers and His Orders and transgressed beyond bounds in Allah's disobedience), and Allah will inform them of what they used to do.
5:17 Surely, in disbelief are they who say that Allah is the Messiah, son of Maryam (Mary). Say (O Muhammad SAW): "Who then has the least power against Allah, if He were to destroy the Messiah, son of Maryam (Mary), his mother, and all those who are on the earth together?" And to Allah belongs the dominion of the heavens and the earth, and all that is between them. He creates what He wills. And Allah is Able to do all things.
5:15 O people of the Scripture (Jews and Christians)! Now has come to you Our Messenger (Muhammad SAW) explaining to you much of that which you used to hide from the Scripture and passing over (i.e. leaving out without explaining) much. Indeed, there has come to you from Allah a light (Prophet Muhammad SAW) and a plain Book (this Qur'an).
5:19 O people of the Scripture (Jews and Christians)! Now has come to you Our Messenger (Muhammad SAW) making (things) clear unto you, after a break in (the series of) Messengers, lest you say: "There came unto us no bringer of glad tidings and no warner." But now has come unto you a bringer of glad tidings and a warner. And Allah is Able to do all things.
5:65 And if only the people of the Scripture (Jews and Christians) had believed (in Muhammad SAW) and warded off evil (sin, ascribing partners to Allah) and had become Al-Muttaqun (the pious - see V.2:2) We would indeed have blotted out their sins and admitted them to Gardens of pleasure (in Paradise).
5:68 Say (O Muhammad SAW) "O people of the Scripture (Jews and Christians)! You have nothing (as regards guidance) till you act according to the Taurat (Torah), the Injeel (Gospel), and what has (now) been sent down to you from your Lord (the Qur'an)." Verily, that which has been sent down to you (Muhammad SAW) from your Lord increases in many of them their obstinate rebellion and disbelief. So be not sorrowful over the people who disbelieve.
Because Christians reject the idea that their god is Allah; and that Christ is just another prophet, they are doomed to extinction and torture in the after-life.
5:10 They who disbelieve and deny our Ayat (proofs, evidences, verses, lessons, signs, revelations, etc.) are those who will be the dwellers of the Hellfire.
5:36 Verily, those who disbelieve, if they had all that is in the earth, and as much again therewith to ransom themselves thereby from the torment on the Day of Resurrection, it would never be accepted of them, and theirs would be a painful torment.
5:37 They will long to get out of the Fire, but never will they get out therefrom, and theirs will be a lasting torment.
5:45 And We ordained therein for them: "Life for life eye for eye, nose for nose, ear for ear, tooth for tooth, and wounds equal for equal." But if anyone remits the retaliation by way of charity, it shall be for him an expiation. And whosoever does not judge by that which Allah has revealed, such are the Zalimun (polytheists and wrongdoers - of a lesser degree).
5:60 Say (O Muhammad SAW to the people of the Scripture): "Shall I inform you of something worse than that, regarding the recompense from Allah: those who incurred the Curse of Allah and His Wrath, those of whom (some) He transformed into monkeys and swines, those who worshipped Taghut (false deities); such are worse in rank (on the Day of Resurrection in the Hellfire), and far more astray from the Right Path (in the life of this world)."
Christians are the enemy of Islam. They have rejected the Koran. As such Moslems must never take them as friends or allies.
5:51 O you who believe! Take not the Jews and the Christians as Auliya' (friends, protectors, helpers, etc.), they are but Auliya' to one another. And if any amongst you takes them as Auliya', then surely he is one of them. Verily, Allah guides not those people who are the Zalimun (polytheists and wrongdoers and unjust).
5:57 O you who believe! Take not for Auliya' (protectors and helpers) those who take your religion for a mockery and fun from among those who received the Scripture (Jews and Christians) before you, nor from among the disbelievers; and fear Allah if you indeed are true believers.
5:80 You see many of them taking the disbelievers as their Auliya' (protectors and helpers). Evil indeed is that which their ownselves have sent forward before them, for that (reason) Allah's Wrath fell upon them and in torment they will abide.
5:81 And had they believed in Allah, and in the Prophet (Muhammad SAW) and in what has been revealed to him, never would they have taken them (the disbelievers) as Auliya' (protectors and helpers), but many of them are the Fasiqun (rebellious, disobedient to Allah).
Befriending Christians is to offend the Allah thing. This is because Christ is a lesser prophet than Muhammad and his message has been corrupted by his followers. According to the Koran, Christ taught obedience to Allah alone. He was not preaching a new commandment of love, nor was he fulfilling the Old Testament scripture and prophecies. Mary was just a believer in Allah. Christians are thus really Moslems [5:111].
5:75 The Messiah ['Iesa (Jesus)], son of Maryam (Mary), was no more than a Messenger; many were the Messengers that passed away before him. His mother [Maryam (Mary)] was a Siddiqah [i.e. she believed in the words of Allah and His Books (see Verse 66:12)]. They both used to eat food (as any other human being, while Allah does not eat). Look how We make the Ayat (proofs, evidences, verses, lessons, signs, revelations, etc.) clear to them, yet look how they are deluded away (from the truth).
5:111 And when I (Allah) put in the hearts of Al-Hawarieen (the disciples) [of 'Iesa (Jesus)] to believe in Me and My Messenger, they said: "We believe. And bear witness that we are Muslims."
5:116 And (remember) when Allah will say (on the Day of Resurrection): "O 'Iesa (Jesus), son of Maryam (Mary)! Did you say unto men: 'Worship me and my mother as two gods besides Allah?' " He will say: "Glory be to You! It was not for me to say what I had no right (to say). Had I said such a thing, You would surely have known it. You know what is in my innerself though I do not know what is in Yours, truly, You, only You, are the AllKnower of all that is hidden and unseen.
5:117 "Never did I say to them aught except what You (Allah) did command me to say: 'Worship Allah, my Lord and your Lord.' And I was a witness over them while I dwelt amongst them, but when You took me up, You were the Watcher over them, and You are a Witness to all things. (This is a great admonition and warning to the Christians of the whole world).
The entire purpose of Sura 5 is to negate Christianity. Christ and Mary are both belittled and depreciated. Allah replaces the Christian Trinity. Somehow Christian scripture becomes an ode to the cult of Allah. Christians who do not accept Islam are to be killed and tortured. Christian faith is declared to be polytheistic and criminal. How is any of this a display of tolerance and humanity, or of reason and historical accuracy ?