I think as civilization gets more complex, it is making most everyone crazy in their own way. There are a few basic ideas which seem to have attached to the human mind at a deep level and these are what are driving this insanity: capitalism, agriculture, the idea of ownership, this ridiculous growth mentality, etc.
In a nutshell, Christianity calls these the "7 deadly sins." In Buddhism they are called the "fetters."
These ideas are perverting what life should be, a simple co-existence with the natural world and all its other inhabitants. Instead it's a reckless pursuit to dominate, commodify, destroy, pathologize, ostracize, and on and on. Humans seem intent on changing the world to their liking so fundamentally, and mostly just out of anxiety, and for those that don't want to live in that ever-towering construction of hell, it is hard to find a place to exist outside of it. The fact that the infrastructure of the U.S. (and a lot of the world, but here it is hard to escape) has grown up and been built around the very idea of the personal automobile is a sign of how unconscious and stupid humans are: take the human ego, add millions of years of fossil fuels, and you get this paved-over hellhole. Every weed growing through a crack in the sidewalk is something to rejoice.
I am in complete agreement. The way I put it is civilization breeds weak morons. Whereas the only way to survive as a hunter-gather is to be a genius-athlete. If human wish to survive as a species, then they need to learn to preserve their hunter-gather societies.
I find it heartening that there are many out there seeking a simpler way of life, even if for most it is not through an overly spiritual impulse. That may lay at the heart of what they are trying to do, because well, that may be the heart of what people really need; nevertheless, the mere fact that people are being drawn back to wanting a simple lifestyle at all is great. My own forays and studies into finding a simpler lifestyle (permaculture, homesteading, all things DIY, etc) got sidetracked by emotional problems and heavy confusion and delusion about what actually constitutes the spiritual life, but as I come out of that to some degree, I'm finding many of my old plans resurfacing effortlessly and moving back into place in my life. This has been relieving, fulfilling, and encouraging. I'm not really confident about the kind of lifestyle I can envision actually coming to fruition, because this system is so built now to crush anything of the sort, but hopefully I will end up with something half-way decent before I keel over or get smacked by a bus.
Funny, this morning I was just reflecting upon my journey of the last 15 years. I came out of a 2 year solo retreat in the wilderness to find that struggle was awaiting me, and I have been struggling ever since to get back into the wilderness.
Having been technically skilled my whole life, then I tend to come up with technical solutions to meet my challenges. So, I developed a system for making fuel, so that I can drive an old diesel vehicle in and out of the forest.
In retrospect I think I should have driven my old van into town, and left the keys in the ignition and put a sign on it that read "free." Then, packed up my camping gear into a backpack and headed back into the wilderness to never be seen again.
Unfortunately, I've moved through some of the communities of people trying to move away from the mayhem, both via working on farms and staying in squats, and I was immediately suspect in all because I didn't have any interest in donning an identity to match. It is an indication that simply doing away with a few layers of societal ambition doesn't mean much if you don't move even further to undue the layers of inner conditioning, which humans seem loath to do. Being dictated and corraled by a couple of former corporate insurance drones who have seamlessly transported their indoctrinated way of thinking to a farm ("homesteading") structure is one of the quickest ways to burn through illusions of humans going "back to the land." I don't think there is a lot of changing the giant, lumbering beast that is human stupidity. It seems the only thing to do is get out of its way, notice the back door, and walk out.
I too took a few Permaculture workshops, and stayed in a few Permaculture communities; and other off-grid style communities. The problem that I encountered was similar to what you observed. People tend to bring their excess emotional baggage with them, when they bail out of society.
I found it is really only the rigorous, self-aware, disciplined contemplatives who find salvation inside, not outside. The rest of our time, not in meditation, needs to go to a radical restructuring of our lifestyle to distance ourselves from the maddening crowd.