A:People are assholes B: People are religious. This does not mean B causes A.
Chimpanzees fight wars. They ain't particularly religious. Religion does make controlling the masses, to help the leaders pursue their worldly goals, much easier at times.
Religion is neither good or evil. It is a powerful force. People are good or evil.
If you want to find a bunch of closed minded idiots, all marching to the beat of the same drummer, go to http://www.infidels.org and check out the political forum.
The secular humanists goal of seperation of church and state seems honorable on the surface. Until you realize they keep expanding the state.
The Goomhanian religion, which I founded in 2001 and has grown 8 fold since then, has remained a peaceful religion. With the exception of one ugly incident when three of us went for the last two beers in the cooler.
If everyone had an oil well in their backyard 9/11 would never have happened.