God.....

[Baalzebutt]

Thanks for sharing your opinion.
But I have seen that when discussing religion with atheists, there is a grudge against that god, some are even cursing.

I think it's also a hatred for his existence ; that the idea, of such god existing is painful to some people (not all).

Hell for example is one classic argument about why some people hate god.

Again, you completely miss the point. These people you are talking with are not atheists.They are believers who are pissed at god. Atheists do not believe god exists and therefor cannot hate or be mad at him.

Let me ask you this: why do you hate invisible pink unicorns?