The absolute absurdity of God

[pocaracas]

Theists expect us to believe in something that is, frankly, quite absurd when you really think about it.

According to the rest of your post, I'd replace "Theists" with "Christians".
A few other religions rehash some of your points, but not all of your points.

We start with a fairly simple concept:  God, an all-powerful being who created the universe.  And right there, a lot of skeptics are lost from the onset.  And that's completely fair, but the concept itself isn't so absurd.  It just lacks evidence.  And one can believe in many things without evidence.  Maybe not logically so, but it's not completely and totally absurd.

I think they've turned the order on its head...
Let's, for a moment, imagine that humans evolved from some form of ape... and, during that evolution, they started wondering about life and death and what happens to the memories and experiences and personality of an individual after death of the body.
From such musings to having someone declare the existence of another world where those inhabit might have been a matter of minutes, or generations... however much time elapsed, it happened, eventually. The realm of the dead became a suitable explanation, unfalsifiable of course, and it wormed itself into the imaginary and the desires of early mankind.
Simultaneously, this would have generated the concept of a soul.
The other realm would require a hierarchy for control, much like we need one among ourselves... and who sits on top of that hierarchy? The ultimate ruler, the king of souls...
And, from there, all religions drink and make their head god to be that ruler.

The fact that people came up with such an concept as a god is amazing... perhaps it is to be expected in any nearly-agricultural society.

The religion then evolves with the appearance of cities and there, yes, the concepts proclaimed by those religions become absurd... but they are already too ingrained in the population and most people never pose the right questions.
Ignorance is bliss. And we'd rather have bliss than face the potential harsh reality of the end of life as a simple end.