Interesting discussion, but a few questions

What do you mean as "decadence" and Hedonism?

"The more industrialized the society is the more miserable the people seem to be"

Really? Or is it perhaps in a more advanced society people's expectations are simply higher?

I would remind you that giving up modern society would not be as easy as one would think, historic example in point.

In the 1970's the Cambodian dictator, Pol Pot, thought it would be a wonderful to turn Cambodia from a burgeoning industrial economy into an "agrarian utopia" governed by marxist principles. So he emptied the cities and forced march millions of people out into the county side and tried to make them all farmers.

How did that go? Mot quite so well, 3 million or so died within a couple of years from starvation and disease. I would not say the Cambodians were made "happier"

I am not saying that modern society is perfect, but I doubt anyone reading this thread, would walk away from their lives to go live in Zimbabwae, Nepal, or Afghanistan.

I thought I would start with the above remarks and let others respond from there.