Not religious myself, however I did run down to Haiti with a group of Christians to help hand out food and provide general help. Looking around there, I was amazed that I did not see any atheist groups duplicating what I saw dozens of Christian ones doing. Ok, maybe I wasn't.
That said, I think the leftist indoctrination that happens in our schools and intensifies in our colleges is more destructive than any religious one.
Another question maybe is....you are walking down a dark street in a "bad neighborhood" and 4 men pop out from between 2 buildings and begin following you. Would you find it comforting to know they just came from a bible study?