It's good to see the Jesuit Relations (basically the National Geographic of its time) being introduced to a popular audience but the notion that the ideals of liberty and social equality didn't exist in European thought prior to contact between American and European cultures is just wrong.
Well, La Boétie's "Discourse on Voluntary Servitude" dates back to 200 years before Rousseau, and I wouldn't say it was inspired by American Indians. I am not saying that the discovery and then the deep relations that France did have with American Indians did not play an important in the literature and reflections: on the contrary just a bit after La Boétie's time, Montaigne integrated them in his thinking. That was still over 150 years before Rousseau.
Edit: There were other major transformations at work, like the fact that before 1500, writers would either be lords or strongly depend on King or lords both for their income and for being allowed to publish. It was a Middle Age organisation, with a chivalry based nobility; writing essays was not a thing, the number of themes was as reduced as the number of forms. Then society organisation changed, bourgeoisie and nobles started mixing more and more; writing was more long-form (technical reasons come into play too) and of course expanded the number of themes it dealt with.
But what he addresses is radical equality, as a fundamental value, as opposed to "less inequality". Equality under a ruler or rebellion against abuses is not the same as thinking the whole society as composed of equals. Think of no-slavery, equality among genders, sexual freedom, etc. Even thinkers that thought about equality before Iluminism (e.g. Thomas More) didn't go that far.
I strongly recommend you reading, at least, chapter 2 in the book. Is way deeper than what I explain.
Typical Graeber. Total nonsense. Radical equality has multi-origins in religious cults for 1000s of years. It has been part of 'Western' history writing for almost as long as we have historical narratives.
Pretty much as far as we can tell these ideas are resurfacing over and over in every big culture. For most we have no documentation but its clear there and has been documented lots of time.
The claim isn't actually that inequality wasn't a topic, the claim is that discussing inequality within the framing that equality might actually be the natural state of thing, or at least just as natural… that was a novel topic at the time of Rousseau.
And sure, it's probably more fair to talk about why even that topic was burgeoning in popularity rather than to imply that it was truly novel.
Also, it is quite ironic to mention the thought of Rousseau as an exemplar of the Enlightenment when he is often put into the camp of Counter-Enlightenment.
Graener & Wengrove are as susceptible to this as others.
I mean... the origins of enlightenment liberalism, the origin of money and such don't really have distinct answers. There are always multiple, arguable narratives.
The "paradigm" concept is all about narrowing these to simple causal chains and dynamics... which then limits the next generation.
We love paradigms, anti-paradigms, paradigm shifts... So, every author likes to rebel against the preceding simplification and argue their own, calling them myths and misconceptions.
For the most part, imo, excess is what drives it all. The Jared Diamond paradigms, YNH's, Marx's... Graener & Wengrow are focused on challenging their paradigms as much as they are on promoting their own.
If successful, these new paradigms develop their own excesses and a new generation can get pissy with them.
I really hope he doesn't say that because Rousseau is just the high point of a debate about luxury and sociability that runs throughout the whole eighteenth century. He and others like him were influenced by travelogues from the New World describing natives as living simply and equitably. But he was equally influenced by the objective conditions of early modern capitalism, ancient Stoicism, and Christian writings about greed and pride. He wrote his own 'Confessions' in tribute to St.Augustine, after all.
I like Graeber, and he has a truly original mind, but he doesn't have the best reputation in academia for being 100% scholarly.
Chapter 2 was very, very good. Worth the whole book alone. It begins with by questioning "why did Rousseau wrote about inequality if 100 years before no one in western culture cared about it"? Then he goes to show how the themes of liberty and social equality came from Canadian First Nations criticism of western culture. It is very well argued, solid and mind-blowing.
Sometimes the book gets too much into petty fights. I didn't like its takes on Yuval Harari's "Sapiens" or Jared Diamond's "Guns, Germs and Steel". But that's a matter of my personal taste.