Wow, you've really got a thing for oxymorons, don't you? What the hell is a "non-existant God" and precisely how does one go about concluding whatever it is you think someone has concluded about him?
Why do you insist that atheism is some sort of active belief? Is it inconceivable to you that someone might not believe in a god for the same reason that you don't believe in a tooth fairy (there's an assumption in there, I trust it's a safe one)?
W.W.E.D.?