Pre-historic life was brutal. Every one had ring worms. Every one had intestinal parasites. People were hungry almost all the time.
A broken leg led to shock and death, and half of children died before the age of five.
You need to study pre-history, or remote tribes that live in pre-historic modes of life. You're yet another person who underestimates the challenge of living, and takes for granted what modern civilization had to overcome.
When you recklessly abolish the innovations, like private property rights, that led to industrial civilization, you create shortages, massive inflation, etc, and quickly see how fragile the economic system was.