Brilliant. Free Gaza, page-6

yes indeed. through the OT and in the practice, eg crusades and many different sects, cults, even slavery was consciences by the Church.

as I said elsewhere it comes down to the individual and the group to interpret any religious dogma to their own ends. usually dangerous mind-control people but they gather a following. all religions have had such. even Buddhists in Cambodia has committed genocide on Rohingyas.

the religion doesn't have to preach hate for people to hate. yes I know the words in the Q'ran read dangerously demanding of holy war. the literal interpretation of the OT is just as bad. yet the people who follow this book and faith, as devout as your own maybe, find it to be metaphorical for the spiritual journey. a peaceful journey. look for an eg at Sufism for a wholly peaceful branch of Islam.

no, to understand why some people become violent in any religion we need to understand the context and the people involved.