[nradov]

There have never been any self-sufficient communes. They always depend on external inputs. Over the long run, command economies always collapse into famine. It's impossible to command most people to work hard over a long career without free market incentives.

[sandpaper26]

Over time, all systems collapse eventually. That sentiment is worthless.

Furthermore, nobody said anything about working hard.

Surely you're not about to claim that all pre-colonial civilizations with functional governments either somehow had free market incentives or collapsed into famine.

"There have never been X" is always an extraordinary claim and you've done a poor job making it.