perverting the teachings of Mohammad

Rather than the teachings of Mohammed being perverted they are, in fact, being implemented as written in the Qur'an and Sunnah by those who espouse a literal interpretation of those works. Most Christian sects have long ago accepted the allegorical nature of the Bible. Of course there are small pockets of believers who promote literal interpretation of selective parts of the Bible but these are outliers whose beliefs are not endorsed by the mainstream Churches.