definitely sedentary neolithic people had forced labor. all the Sumerian legal texts that were some of the first writings ever included legal definitions of slaves, for example. but the pre-neolithic Anatolian people were nomadic animistic people with no social hierarchy.
It is absurd to claim "hunter-gatherers were fairly egalitarian" and "had no hierarchy." We know that tribes in north west of the Americas, pre European contact, did not practice agriculture and had slaves. What evidence exists counter to this that supports your view? I assert it is literally impossible to make your assertion. Just because burial perhaps didn't differentiate or demonstrate a hierarchy, that doesn't support that the living didn't.
sedentary life and agriculture developed in the Americas around the same time it developed everywhere else in the world outside of the Near East (3000 BC). and this roughly correlates to the beginning of the Meghalayan geological age that continues today - which is when the ~10,000 year old original civilizations collapsed and Neolithic cultures became ubiquitous around the world and not just in Mesopotamia and the Yangtze river
While "sedentary life and agriculture developed in the Americas around the same time it developed everywhere else in the world," it was not the case for the coastal Salish and other tribes who lived on the resource abundant Pacific Northwest.
There is even a small amount of hierarchy at our 15 person Thanksgiving family dinner.
If that's an accepted idea in the field, hopefully it comes with a lot more evidence than bones being mixed, as future archaeologists might find in many of our cemeteries of today.
To know that, we'd have to identify the bones of an important leader in a mass burial site.
We don't know that.
Citation required.
The truth is, we don't have much but speculation and narrative about the people of Gobekle Tepe, and even assumptions about them being hunter gatherers at all are based on centuries of bias and assumptions, with a whole lot of cultural chauvinism and religious nuttery baked in for good measure.
We're going to have to start analyzing humans more skeptically and rationally, as opposed to taking most of the modern historical narratives as gospel.
Modern humans have existed genetically for 300k+ years. At one point about a million years ago, the Early Pleistocene bottleneck had the population of human ancestors under 2000 individuals. 700k years later, the first modern humans were born, and the first situations in which we had the opportunity to establish culture.
We know from the great north american megafauna die off, climate records, and archaelogical evidence that something happened around 13k years ago to basically reset whatever human civilization there was. It took around 3000 years before the "neolithic revolution" , cultures demonstrating mastery of stone tools, pottery, more sedentary lifestyles, specialization, and so forth. It took another 4,000 years to reach the point where we had started creating written records again, started creating monuments and technology sufficiently durable to last to modern days, and then so on and so forth, with relatively uninterrupted and steady progress to the present day, each culture and age building upon the previous.
I think it's silly to think that it's only in this last 12-13,000 year period that we reached any of the cultural and technological milestones, and that every culture previous to that must have been hunter gatherer, because hunter gatherer are the default "feral human" prototype culture.
We bred dogs from wolves successfully around 45k years ago. That would have taken a generation or two in a nomadic context, or one really spectacular single lifetime for a sedentary person. Even so, you think that for the 250k years prior to that, not a single culture developed writing, wheels, pumps, discovered metal forming, or other technologies?
The human population was scarce, and because of that scarcity, the majority stayed in the absolute best, premium locations - beachfront. A vast proportion of settlements would now be well off the coast, and we have indeed discovered artifacts and evidence of such in various places where researchers have looked.
I'd be willing to bet good money that over the last 300k years there are many 10,000 year cycles and catastrophes where civilizations have risen and fallen, many achieving high levels of technology, perhaps even discovering electricity, advanced chemistry, medicine, and so on, but due to catastrophes, small populations, they got reset back to baseline. I'd bet that it didn't happen 30 times, as often as possible during the course of events, but I'll also make the claim that our current peak of civilization isn't the only good run that human race has ever made.
We are probably the only ones that made it to mass production, definitely the only ones that succeeded in scaling up resource extraction to the levels we saw back in the 1800s. I think there are probably caches of artifacts, evidence left out offshore that technology will make visible to us, that will show a much richer tapestry of events and cultures and history than the somewhat limited and biased narrative that modern historians have put forth as definitive.
and even assumptions about them being hunter gatherers at all are based on centuries of bias and assumptions, with a whole lot of cultural chauvinism and religious nuttery baked in for good measure.
Archaeologists are much better about recognizing the complexity of forager lifeways than they were 50 years ago.