Are cats atheists?

[Mystic]

So then, by your logic, it seems to me that atheism would be a choice and not just the default belief.

Let's say you hear about Islam, and you are undecided. You haven't disbelieved in it yet. But when you know about it's teachings, and you don't believe in it, then you disbelieved in it.

Whether that is a choice or what we believe is not really our choice is up to debate. I believe we chose what we believe, sometimes justified in our decision and sometimes not.

Atheism was not the default state of my childhood certainly. I don't ever recall having the concept of God and not believing in it.

Atheists on the other hand, when presented with God concept, chose to disbelieve in it, because they aren't aware of any evidence, and that there is no reason to believe in God, and it seemed to them that they don't know God exists.

It's a choice, and it's an informed one, in my opinion. It's not a default state in my view.