Well, as an atheist I have to admit that it is quite infuriating to see the world constantly tearing itself apart in small and big ways over "religion." Even in domestic terms, you have things like a family ostasizing a member because they convert to "the wrong" religion or marry someone outside their faith, and its a real shame. I'm of the live-and-let-live philosophy, but organized religion often goes against this due to its inherant codification.