Atheism isn't a belief?

And to keep it on topic, why the hell does anyone care about someelse's beliefs as long as they don't have anything to do with others?People care about someonelse's beliefs when they are contridictery of thier own, because it scares them to think that they might possibly be wrong. Personally I have been an atheist for the better part of my life, not just because I dont believe in God, but more importantly the question that I always come back to is "if there is a God, why do bad things happen to good people?" in otherwords if God is suppose to be so great and loving, then why does he let people suffer? Now you can tell me that God gave us all free will and that we make our own decisions and God can't always step in, becuase if there was no evil you wouldn't know good. But truthfully Ithink that is a bunch of BS.