Those 60s hippies were a hundred times more resilient than 20-somethings today are. They were living on communes growing their own food, fishing and hunting game, using power tools to build stuff, and repairing their Volkswagens.
But they wouldn’t have survived in Nazi occupied Europe or any other time in human history when tyrants ruled. There are times in human history when you must fight to survive. That is the cold cruel world. Idealism is a luxury that we sometimes cannot afford.