Atheism

I can't say that I am a religious person, but I do believe in God.  My reasons are myriad and some of them are quite personal.  Still, I consider myself fairly tolerant of other's beliefs and atheism is no exception.  I know quite a few people who profess to be atheist and they are good people.  Recently however, on a social web site, one of my friends has become almost fanatical about atheism.  From calling theistic believers silly idiots who believe in fairytales and superstitions, who condone acts of violence because the bible tells us to, the list goes on and on.  It's really quite shocking because I am not sure what the agenda here is.  Is the atheist trying to change the world for the better by proselytizing atheism?  Is he so worried about us poor believers delusions that he wants to help us by leading us to the truth that he believes?  The problem is multifaceted but there is one thing I want to know.

 

 

                          Why do you care that I believe in God?  I don't care that you don't.