Unfortunately, some in the religious circles do not condemn hate behavior and purport to be the workers of a loving G-d. It is undeniable that awful things have been done in the name of religion. The issue of whose religion or religious sect is better has been the subjects of international wars and conflicts for centuries. How long did it take for the leadership of the Catholic Church to address issues of sexual abuse? These institutions are run by humans-- always fallible, sometimes cruel, and often afraid to admit to mistakes in dogma or doctrine. Many bad things have been done in the name of religion-- Westboro Baptist Church or Jim Jones or Churches that caused harm to gays or the mentally ill.
Many of the perpetrators of violence lay claim to a religious belief. They believe they have a personal love and will be forgiven for anything once they enter death. No need for remorse or changed thinking. While many would not openly stand with their violent actions, there are leaders of groups, religious and non-religious, that continue to actively or passively condone the behaviors--- not unlike the pastors that were active in the KKK alongside of the police chief, or the pastors who preach for one political party or another justifying the actions of fallible men in order to gain some political clout.
