Is atheism a belief?

[Belacqua]

Does he reject them for reasons, or for no reasons?

That's the rub, Bel...it doesn't matter.  He's an atheist either way.  Not all atheists are atheists for the same reason..or even any discernible reason whatsoever.

Some adults may be atheists because they have never heard any religious claims and haven't had to reject them. Most, however, have heard and rejected religious claims, and are therefore atheists because of the standards they have for accepting or rejecting claims. 

If they are adult atheists who reject claims for no reason whatsoever, they are just prejudiced nonthinkers, and I concede that a lot of people may be this way. I hope no one like that is posting here. Or they may be atheists for bad reasons, rejecting claims with logical fallacies like, "I wouldn't like it if it were true, therefore I reject it." 

So yes, people are atheist for different reasons. They have different reasons for rejecting the claims they have heard. 

But people are starting to "argue" this topic with personal insults now, so it's time to drop the subject.