Atheism isn’t a belief system. I have a belief system but it’s not “based on” atheism, it’s just not based on the existence of a god. I make none of my moral, social, or artistic decisions based on any god or superstitions. Saying atheism is a belief system is like saying not going skiing is a hobby. I’ve never been skiing. It’s my biggest hobby. I literally do it all the time. But to answer your question I am constantly faced with theories of God, and angels, and hell. It’s everywhere. But unless there is an ounce of credibility to it, I reject. I have to. You can’t lie to yourself. If you do you’ve only fooled a deluded person and where’s the victory in that?