One time at the Unitarian church I go to, I had a Muslim preacher/speaker/pastor (I don't remember what they're called but I think it wasn't one of those) educate us all about Islam. The best part was he wasn't trying to convert anyone or anything -- just educate. After hearing the whole thing, I felt guilty. I felt guilty for myself buying into all the newsmedia hype for the last 10 or so years, and guilty for every single person who genuinely believes that a simple religion is all it takes to make someone truly evil.
This. And believe me I'm in no way pointing finger or blaming you at all. But this is an example of why the primary religions thrive. It's part of a cultural indoctrination that gets foisted on us (by us, Americans). There are two groups in play, "us" and "them". People who believe what we do are "us" and are right. People who are different -- "them" are wrong. No discussion.
Put another way, there's a section on Lewis Black's Rules of Enragement album about the September 11, 2001 attacks. His words, paraphrased are that on September 12th:
We needed: An immediate source of information about Islam, the splinter religions, the politics of the region that claimed responsibility for the attacks, and a brief explanation of why those groups would find fault with American culture.
We got: A surge of empty, jingoistic "patriotism". 24-hour newsfeeds about national terror. A national cry for revenge on... anyone. So we went to Iraq.
Now the social tension is ridiculous and violence is on the rise, because instead of a drive for understanding, we were fed blood, death, and fear.
I'm trying to form a better response specifically re: religion, but it's hard for me to be impartial and inoffensive. I'll keep trying.