To be honest, I don't really blame religion for a lot of wars either. Most of the wars fought in the name of some gods aren't fought because those are the mandates of the religion or teachings of the religion. Often times the religion is abused, twisted and warped by the leaders of the region so that they may energize the people into thinking the war is just and grand and needing to be fought. But the root cause is almost always the same; money, power, and/or land. Those are usually the main enablers of war. Human greed, if you want to blame anything blame that. Our greed is immense, and it is all consuming at times, it enables us to do some horrible horrible things.