Is it a good idea to be an atheist?

[Esquilax]

Then we ask the atheist, "you don't believe because of...[his answer]?"

I'll ignore the less solid parts of your posts- they've already been covered- and just tell you my story: I became an atheist by watching theists try to defend their belief in god. I had no particular interest in the subject one way or the other, right up until the point I started looking at the theistic arguments for god, and realized that all I ever saw were either outright lies or logical fallacies. The outrageous way christian apologists approached the topic of their god drove me to examine the opposing side for more information, and I found that while one side never said anything true, the other side strove to do nothing but speak the truth.

That's all I really need, to disbelieve. The believers have made no solid case, therefore it is rational to dismiss what they're trying to prove. I don't need to have evidence against every positive claim to stop believing in it; you don't have to believe in leprechauns up until you can prove they don't exist.

Then we tell him, "you realize you can help humanity a great deal by sharing your answer with the rest of the world?". "The world will be so much better knowing somebody has found a definite proof God does not exist because [his answer]". "You will be rewarded with a Nobel Prize and all wars will stop thanks to your thoughtfulness."

This is a shifting of the burden of proof. You don't have to accept every claim until it's proven false.