You can read Marshall Sahlins, Lewis H. Morgan, Eleanor Leacock or others.
One thing they say is the hunter-gatherer bands of 10,000 years ago (or the small handful which remain in the world's remaining wilderness today) are not as bad as they say.
One thing is - the men in some of these bands work less than 40 hours a week. So in some respects, they are better off than a lot of people here (in some respects worse off).
The basic idea is against the Panglossian idea that Voltaire talks about in Candide - that we're currently living in the best possible economic/political/etc. system. One counterpoint to that is every political system since the dawn of time has held up people like Pinker who say we're living in the best of all possible systems and the other ones are awful, people need a strong government to keep them in check, and so forth.
People didn't need a strong government to keep them in check 10,000 years ago, 20,000, 30,000 when they were painting buffalos in caves and so forth.