To be serious for a moment, a sterling example of NB’s points is to be found in the recent history of the North American continent. Obviously, I am referring to those Native American tribes that eschewed an agrarian life style and remained hunter gathers until - well, you know the rest.
Once one dispenses with the “Dances With Wolves” malarky and takes an honest look at these cultures (and one has to address them in plural terms), the hunter gatherer Americans had “succesful” societies. Did they have wars with other tribes? Sure. Did some enslave other tribes? Yes. Could individuals be “brutal”. Of course. Apparently those are constants of human nature.
But, if one steps back and looks at these tribes “big picture”, until the European Americans showed up, they had endured, succesfully, for centuries in essentially the same “form” - developed language, writing, music, religion, basic tools and used horses (once the Spanish introduced them to the continent). And I’ll tell you what, give me (as a young, but well informed, boy) the choice between life among the buffalo hunting plains tribes or at a tin mill in the British Midlands in 1840 or so - and that’s an easy one.
By the way, the agrarian Native Americans of the New England area, for example, had stable, succesful societies as well. (The Wampanougs - I hope I got the correct tribe there - certainly pulled the Pilgrims chesnuts out of the fire - all of which makes Nathaniel Philbrick’s “Mayflower” such a great read for the amateur historian.)