NOT the place to try to score political or (anti-)theological points, people. Those of us who believe in God need to show our faith by serving others as God would have us do in times like this. For those who don't believe, please show your faith in the human spirit by helping others recover and rebuild. But regardless of your faith or lack of it, please don't make it harder on those living in the area by exploiting their tragedy to win arguments.
People have strongly held beliefs. Unscrupulous individuals and groups use people's strongly held beliefs to manipulate them. Mob mentality can also feed off of strongly held beliefs, or fear when such beliefs are threatened. You could abolish all religions tomorrow yet you would not change this fact about human nature. Richard Dawkins believes in atheism just as fervently as Billy Graham believes in Christ. (Yes, Dawkins is a scientist, but in many of his writings he is functioning as a defender of philosophical naturalism, not the scientific method.)
Quickly a few other points... In the 20th century (the bloodiest yet) many if not most of the major wars and genocides were underpinned by atheistic philosophies. You assume that "all religions are created equal;" is this really the case? For example, Jesus was a charismatic healer, while Muhammad was a soldier; does that make a difference? Is a particular war with religious justification a direct result of the religion's teachings, or of distortions of said teachings? Should we judge a set of beliefs by their teachings or by their abuse? Do we judge a faith's Scripture by its overall teaching or from individual passages? Is the total historical impact of a particular religion positive or negative? (Quite naturally, religious people lift up the positive while non-religious people emphasize the negative; to be honest we must look at both.)
Our "sound bite" (should I say "byte?") age reduces complex issues to talking points (should I say "yelling points?"). That solves nothing. My own exploration of these issues led me to this simple conclusion: people find justification for the wars they want to have. Remove religion, and you still have the wars.
Regardless, the religious impulse is a part of human nature and is not going away. Maybe looking for the good done in the name of faith would help you gain perspective.