Nonsense. The hippies were not survivalists. they wanted a place for Sex and drugs. Their communes did not last long.
Even a cursory examination of the 60’s communes shows that they were founded on redistributionist principles. They failed because it was impossible to get more than 1 or 2 people, usually trustafarians or university professors, to work and contribute actual cash to the enterprise. The rest found a million excuses to not do the dishes,weed the garden or even clean the dwellings. More time was spent on meetings than anything else. The end game in all communes was a recruitment drive, looking for more poor suckers to come and do the scut work. A common trope of the times was :”I have more important things to do than work.”
My mom had a farm house next to her property where some hippies decided to set up shop as a commune in the 60’s. They were pretty much to themselves but lasted only thru one winter there. I guess they were fair weather hippies. They had huge gardens but few who would work them. I’d guess those doing the heavy lifting decided enough was enough as well. At any rate their desire to be self-sufficient didn’t work as they thought.