It is rather curious that Muhammad, who raped, killed, tortured, murdered, had 15-24 wives and concubines [only the quantity not the act of misogyny is in doubt]; who waged Jihadic war to spread his totalitarianism, is considered a prophet. Christians who had refused to follow the illiterate Arab adventurer, and who had in part, fought with the Quraysh against the Muslims were condemned by Allah to suffer torture, death, enslavement and eternal damnation. Allah the moon deity Baal or Hu'Baal of Mecca, is of course a pseudonym for Muhammad within the pages of Mein Koran.
According to Muhammad-Allah, the Christians with their Trinity worship, are polytheists, wayward, greedy, linked with Satan and never to be trusted. Within Mein Koran polytheism is to be punished by death. Muhammad had a grudging respect for Monks and Nuns, but since they would not follow his Sharia or path, they were just another group of criminals and antagonists.
“Fight against the Christian and Jews until they pay the tribute readily, being brought low into humiliation.” [9:29]
“...monks devour the wealth of mankind wantonly and debar men from the way of Allah...” [9:34]
“There will be painful doom to the rich and greedy Christian monks.” [9:34]
“Jews and Christians believe in idols and false deities.” [4:51]
“Jews and Christians are losers.” [5:53]
“Christians are wrong about the Trinity. For that, they will have a painful doom.” [5:57]
“Do not take Jews or Christians for friends. If you do, Allah will consider you to be one of them.” [5:51]
“Christians and Jews are perverts. Allah himself fights against them.” [9:30]
“Jews and Christians are evil transgressors.” [5:59]
“Christians and Jews must believe what Allah has revealed to Muhammed; if not, Allah will turn them into apes, as He did to the Sabbath-breakers.” [4:47]
Fight, kill, hate the Christian. Pope Frank would say this proves Moslems love their Christian 'brothers'.
Muhammad seems to have learned most of his garbled and quite insane monotheistic theology from Nestorians and monks, at least in part. He would have encountered them on his travels to Syria on caravan business, before he turned to looting and pillaging caravans to sustain his Jihad. After the Christians mocked and rejected Muhammad, recognizing his insanity, they became cursed by the moon deity. Having failed to recognize Mohammed to be a prophet, the Christians would be punished and eternally damned.
Perverts, losers, apes, greedy, and engaging in false worship, the followers of Christ had to be supplanted by the 'purity' of Islam. To big brains such supremacist raving is deemed 'religious' and tolerant.