There's ample evidence that living in small-scale tribal societies really is the best for our emotional and psychological health. There are entire books on the subject. The problem is that we can't go back to that, nor would we want to. I would argue that we are still figuring out how to adapt to agriculture, it having been such a recent development in human history.

I don't necessarily know what the best path forward looks like, but I do know that what we've built here in the US isn't sustainable because it's not working for too many people.