Seems like there's extremists on both sides, Atheists that will argue with priests and priests who will argue back. They're both fucking crazy 
Atheists use facts. Theists use beliefs. Only one is crazy, and you are either one or the other!
Every person had their own "god" inside their own mind. (Yes, you could claim there are over seven billion gods in the world.) Atheists call it our consciousness. However, most theists are vain and believe their god can influence things outside of their own mind. That's where the conflict comes in - with atheists and with each other. Theists can't even decide on what heaven would be like, because each one has people they do and don't want there. So obviously heaven exists just within your mind as well.
As an atheist I know your god is limited to your brain, so it doesn't bother me what you believe. I don't hate religion, but I do feel sorry for their brainwashed cult members, and it does bother me when they try and push their ignorance on other people.
Here's a hint to Theists: The majority of people in the world do not believe what you believe! Take the hint!