So what does it mean to own something? The concept of ownership has been debated through various philosophy for millenia.
It is nebulous enough of a concept that I would consider ownership to be a part of a social contract, defined by the laws of the land, and not a concept derived from nature's law.
I could state that anything you own is just a proxy or token of your time and energy. Super-generalized, but possessions are shitcoins, and firms like Blackrock and Vanguard are shitcoin exchanges.
Even in this extreme generalization, I think I could make the case of Bitcoin being different, because of its lack of physical representation. Because mind wallets are possible.
Anything on the physical plane cannot be owned, and rather owns us, as much as we allow it.