Hey akareyon, thanks for comment and contribution to the discussion. I do have some counterpoints, however.

1)When we die we don't "return" ourselves to any rights-bearing actor.
2)How does interacting with others give them the right to control our bodies? That makes no sense as the person that uses the body has the better objective claim to it -- direct use. This is always the case unless the person has committed an aggressive act.

I personally recommend reading about Argumentation Ethics which explains the purpose of property rights. It immediately makes clear why the idea of communal "ownership" is antithetical to ownership. https://mises.org/library/argumentation-ethics-and-liberty-concise-guide