IMHO all religion and cultures have a lot to answer for, big and small alike...
And EVERY one of them have their own particular brand of fanatics ...
Islam has it's Jihads
Hitler set new benchmarks
Church of England had the Crusades
Christians also had their witchhunts
Serbs had their ethic cleansing
The Croats also had theirs
Many African nations thought "fuck it" and joined the cleansing party
Branch Davidians had their Waco
Kool Aid was drunk in Jonestown
.....
Shit, I'm beginning to sound like Michael Moore.