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.
The innovations that help people live longer aren't private property, they're medical science and city planning.
They don't depend on private property to continue existing
Private property is what generated the massive gains in productivity that allow society to allocate resources to employing specialists like doctors, researchers and water sanitation engineers.
Even over the last 50 years, it's abundantly evident that private property rights facilitated the unprecedented gains in wages and quality of life seen globally;
https://www.ted.com/talks/paul_romer
http://www.economist.com/news/leaders/21578665-nearly-1-bill...
http://www.csmonitor.com/World/2016/0207/Progress-in-the-glo...
Capitalism means trusting other adults to be able to use their own intelligence to make the best choices for them.
Fascism and other authoritarian systems like communism is, at heart, pompous, arrogant, and disrespectful because it presumes to dictate what the people must do.