What it means is that he does not believe in God.
Knock knock.
Who is it?
Jesus. You need to let me in.
Why should I let you in?
So I can save you.
Save me from what?
From what I’m going to do to you if you don’t let me in.
Does that about sum it up?
I think it would be a lot more simple just to admit that we do not know for sure just what Heaven and hell is?
With all of the symbolism we can not prove anything except in our own minds, and i can not even do that much.
After all we can still argue about what we think it is and that is where the fun is.
What the unbeliever is saying is more like, "I could never believe in a God who would send someone to a place like this Hell is supposed to be," or "I could never believe in a God who would create a place like this Hell He is supposed to have created for people."
The unbeliever may be wrong, but he or she is not illogical. The person who wrote this is playing mind games.
Existence is Hell. QED