I don't believe either religion or Atheism or any other belief system is "right" or "wrong." Because they aren't. What is wrong is to infringe upon other people's rights to do as they see fit, as long as they're not infringing on anyone else's rights either.
If they're not infringing on anyone else, who cares?
Not every Christian or Atheist or other religion is a jerk. Sure, there are a few, but that doesn't make them all assholes.