I don't disagree with any of this.
However most people are working overtime just to keep their spot, keep lights on and fed, and keep the govt away.
Some people can become self-sufficient yes, but there will always be the burgeoning masses.
Those masses necessitate the scale of consumption and production we have today for food, energy, and material.

It's likely that you couldn't reach many of the achievements we have today without the large gradient of economic classes/tiers.
But I think it's becoming clear that the system is reaching an upside down point because we have so many people doing jobs where there is no real product.
Look at all of the wealthy young people from simply playing video games or dancing and making videos online. And yes the same is true of much of corporate media and entertainment for the past several decades.
An equally troubling metric is how many people are employed by the government now.
We see automation popping up everywhere, and they say a large portion of the public has simply walked away from the labor force.

I think we can see that there's an obvious decline in society overall, and I fear that we're only in the beginning.
I think we're going to see more infrastructure failure before long. But the immediate threat is the lawlessness and desperate people.
You see mobs of people raiding stores in urban areas pretty often. It was often for clothes, electronics, and luxury items, but I've seen where they clear out the food too now. That's a notable marker.
Major stores closing because of theft. Hell Walmart had a report that people are only buying food now, and they don't make much profit on that.

Self reliance will be key if this continues, but geography and proximity to dense populations will also become important factors.
Many of the old farmers I've known did it all. They were a mechanic, electrician, carpenter etc.
Most people now don't even know how to change a tire, and in times of hardship they'll demand the authorities make things easy for them. Or they'll join whoever is most convincing or intimidating.