BUY A PRINT OF THIS CARTOON
I can imagine if God said, "I don't believe in people anymore!" and a believer would say, "Describe your people for me!" and God would say, "They are self-centered, greedy, violent, and stupid. I just can't believe in them anymore!" and the believer would say, "I don't believe in that kind of person either. Let me describe the kind of person I believe in!" and then they would proceed to evangelize God.
Seriously, though. What if atheism is you don't believe in God, and reverse atheism is God no longer believes?
But, if there was a God, would God believe?
Because belief is not for omniscience. It is for ignorance.