I can feel your anger

[CliveStaples]

Uh huh, again, if that's the entirety of their beliefs then that would make them atheists. That doesn't make the statements "atheistic", because without reference to a persons beliefs the qualifiers atheism and theism have no meaning, Mr Set Theory.

Okay, I guess I should have been more clear that I was referring to belief systems, not...spoken statements or something. When I was saying "X is just as atheist as Y", what I meant was "The belief system composed entirely of X is just as atheist as the belief system composed entirely of Y".

That's why any given motivation for something would have to stem from atheism to be called an "atheistic motivation" and not simply something that motivated an atheist.

Right, I guess I'm still not sure what "stem from atheism" means in this context. To my thinking, if a motivating set is atheistic, then it 'stems from atheism', since that motivating set when viewed as a belief system itself is atheistic.

Are we still having issues trying to imagine a motivation for an action for the set that contains only "I don't believe in god"?

Uh, no. You can think about that if you like. I've already expressed multiple times my view that "There exists at least one god" and "There do not exist any gods" never form a motivating set. If you want to investigate the matter, go right ahead, but I don't think there's anything to be found there.