In a continuation of Dmitry's last piece, he argues that at the center of the theism vs atheism debate lies a power struggle. I don't completely agree — I believe that, in many instances, the discussion is truly about the betterment of mankind — but on some level, I fear he's right.
He also touches on a point that has been the source of internal struggle for me: the atheism movement (yes, it is a movement) can only succeed, though I hate to use that word, if it can replace the meaning and direction that faith provides. Without a sufficient replacement, theism will linger. For me, the very randomness and finite nature that a rational perspective brings, and that theism fears, instills a sense of wonder and awe that has become a sufficient, even superior replacement for the guidance of theism. Ironically, that's an impossible thing to rationally argue for. It only comes with the shedding of fear and preconceived notions.