Religion is a touchy subject with a lot of people. It is true that many religions have a quite violent past, and some have a violent present. The difficulty in discussing this is that people identify with their belief system, and take statements like this as an affront to their own person. Catholicism for instance was focused around the barbaric crusades for many many years, however in modern times it preaches peace. Any religion, belief or even idea can have supporters with nefarious desires. I don't blame the belief system, I blame the bad acting people.