It is not the Muslims fault. They have been brainwashed into the cult of death religion and the idea that if they kill an infidel they will go to meet Allah who will give them 72 bearded virgins. A large majority takes that seriously. This is constantly stated in Mosques and in Muslim countries by their Mullahs and rulers. Those that diverge are either killed or ostracized. There are well known exceptions but I can count them on both hands.