He wanted to know examples of other faiths being radicalized or using religion as a basis of hate and I think that was a valid example. Many of those groups (not all by any means as some were just anti-federalism) used the Bible, their church groups (often home churches and non mainline sects) as grounds to preach and promote their oddball interpretations and paranoia. I just wanted him and others to see how politics and religious ideology can become intertwined and promoted as violence in any religion.

There are other examples within Christianity (such as the whole Ireland issue) or Buddhism (the war in Sri Lanka) or even Hinduism (in which both nutty Hindus AND Muslims have killed each other). Although, I'm not really sure anything would convince him so I'm not even sure why I tried.