Atheists don't even realize that they are not atheists. They CAN'T be atheists. Why not? Because atheism says that God does not exist. Yet atheists all know that God might exist somewhere they haven't examined, yet, like at the bottom of the ocean, or on Mars, or in some other galaxy.

Since atheists know this, they are only TRYING to be atheists. And it will always be difficult for them to be atheists, at least until they have examined the whole universe to see if God doesn't exist somewhere.

Atheism is self-contradictory.