You are complicating things.
I am an atheist but I don't have the faith that god doesn't exist. I just have as a basis the lack of god's emprical prove. You may said that god can't be proven empirically, but If it can't, I will never believe in him/her/it. If there WOULD be emprical prove for god's existance, (don't post that the tipical things like "he is around you" "look every where" "look at the good things" "and you will be looking at god".......) then I would bleieve in god.
but there isn't.
And it is not about dis-proving god, but about proving him.