With your people-working-together model, modern civilization would not be possible. There would just be too much friction in a world where every interaction and every boundary must be voluntary and previously agreed upon. It would sorta work fine for sparsely populated pre-modern times, like the XIX century American West [1], which I believe is the origin source for a lot of such fantasies.
[1] Except for the fact that the West rugged self-sufficiency was only possible because the pioneers could call in cavalry to exterminate groups of people who posed a threat they couldn't handle themselves.
“Superstition” is just as much an abstraction over a general pattern of things happening as “government” is.
You say “show me a government and I’ll listen”; I say “Show me a superstition (and an explanation for in what sense you have shown me one), and I’ll show you a country (in the same sense).”
Every time we generalize it results in violence and conflict.
I am 100% supportive of people working together.