I did Göbekli Tepe at uni and have a special interest in the Epipaleolithic and Neolithic of SW-Asia. If there are any questions, ask away.
By the way, that people were building in stone before the advent of agriculture has never been in doubt. There's lots of structures made of stone before Göbekli Tepe. What made the finds special is that it is not a settlement, but was purely a cultic site which was built by different groups of hunter-gatherers, showing that cooperation and the will to create large scale projects were a thing back then already. It was probably used for funeral rites, and certainly for feasting. I like to explain it as the "sex, drugs, and rock'n'roll"-site where the people living in the vague area could gather to celebrate on special occasions.
I don't really watch videos on the subject because they usually get me into a state of irritation/bafflement (depending on how much stupidity is at work), but recently made an exception for this:
And yeah, "economic man" is an invention of economists (which are no better than theologians imo). Nobody who works with this stuff believes in that particular myth.
I beg to differ, we're quite good at dating. We're also quite good at determining what happened to stuff and can tell water damage from wind erosion or from damage caused by people breaking off the fancy rocks for building material.
I would heartily recommend you to check out the channel World of Antiquity at
. Dr. Miano is a great guy who discusses things like the pyramids (and many other ancient things) with an eye towards people who believe that historians are neither good at dating nor at doing archaeology and history.