I don't understand what your argument is, am I supposed to judge a religion by how many denominations there are? Islam is an inherently warlike religion that practices pedophilia, incest, polygyny, and sex-slavery. Their theology is a frankenstein monster cobbled together out of rabbinic judaism, arianism, and gnosticism. Muslims have not even contributed 10% of what christians have to civilization (even in their short lived golden era they relied heavily on assyrian and oriental orthodox christians).