I mean, it is though. Mohammed (may he rest in piss) was instructed by a Catholic priest while growing up and if you read the Quran (I have) it is mostly a line by line edit of the Bible (old and new testaments). I believe Mohammed really did get beat up by a (fallen) angel, but the odds of him rewriting the Bible without consulting the original seems unlikely, especially given that he lived in a Christian nation and, as stated above, received personal instruction from a priest