I just realized something. Well, on 6/23/2020, but whatever. I still realized it.

The reason why Christians, Muslims, Jehovah's Witnesses, and other religions, go around, trying to convert so many people, is for one reason:

They are afraid their religion will die out.

If they weren't afraid, why would they go door-to-door, trying to spread it as fast as they can, like wildfire? They fear it will die out. If they didn't, they wouldn't be trying to recruit as many people as they can.

Atheists don't go door-to-door. Religious people do. This shows a fear among religious people, that simply doesn't happen among atheists.