Our ancestors had much better lives than we do, what’s not to want to go back to? They had everything we want, except all the “stuff” we produce that’s clogging up & destroying the Earth & not making us happy anyway. I recommend reading John Zerzan’s anti-civilization writings (e.g. Running on Emptiness: The Pathology of Civilization) or, for an easier start, In the Absence of the Sacred: The Failure of Technology and the Survival of the Indian Nations by Jerry Mander. That hunter-gatherers had worse lives and we have better ones now is one of the main myths/bits of brainwashing that keeps the pathology of our society churning away.