> We need to

Not doing that has caused problems.

People can own nothing and be happy,
if that's what you want, and everyone else leaves your
community alone. Hardly could it be done under the above
linked governments that seek to own everything
and dole out your happy. Nor hardly beside people
that won't leave you alone. Enclaves of ownership
and non-ownership could probably coexist and interoperate
so long as they don't physically cross with arms over
the river NAP between them. No one but entropy
knows which form would survive longer. Look to biology,
it's full of non forms lacking sentience, and this rock
is full already. Good luck.