What is property?

Sure we do - at least if you ask me. Why do you think otherwise?

There is little point in talking to someone being outside of paradigm of communicative reality.

With all due respect, I think your search for an ultimate objective (i.e. factual) basis for right and wrong will be in vain.

There is already a few thigs that I know are objectively true, i.e. factual, including some ethical principles.

idle resources arent being used, thats tautalogical. You arent using your body unless you are using it, keeping the couch from floating away doesnt count. Otherwise I could use a painting by decorating a house with it.

But you’ll still make them, I see.

You arent using your body unless you are using it, keeping the couch from floating away doesnt count.

Body is used for living in it, where we could identify the mind as living in it.

Land is used for living on, where we can identify the ‘self’ as the fleshy vessel containing the mind?

we might be able to, if the mind were tangible. But this assertions fails based on your own requirements, the mind is not tangible so it does not count. Hoisted by your own petard, natch.