Ownership still boils down to the enforcement of law. For example, if you send BTC to an address that is owned by nobody, then that property is lost forever and can’t be recovered even if the original owners protest.
In fact, people are giving away their right to control in certain Distributed Autonomous Organizations (DAO).
What I am saying is that ownership is not something that is intrinsic to humans. Rather it is something that is enforced by law and depends on the strength of the enforcing party.