It may be a bit late in the discussion for me to chime in with this, but reading through the first couple pages reminded me of this: A wise old Greek playwright named Terence once said, "I am human. I consider nothing that is human to be alien to me."
All people are capable of great good, and great evil, regardless of ethnic or religious background. We could all be Hitlers, Stalins, we could all be MLKs, Mother Theresas. Regardless of what excuses we use to become such, this is so.
So let's stop pretending abolishing religion would do anything to change the human condition.