You are correct that the term property does not originate from rights(Claims to action) but from other things. I’ll address a more formal definition of property in another post. For now this is going in circles, and I am not sure if you even have a clear argument here. For I still have yet to understand what you’ve been arguing all this time. Essentially what I’ve been trying to avoid saying is your Customary vs statutory law is a complete red herring and non-relevant.
Where does coercion come into play in voluntary exchange?
You cannot own a person, for reasons I described above. You must have missed that. Human’s are not lamps. Human’s must accept compliance, even if coerced, lamps do not.
In what way does all social order revolve around coercion? I am not saying that coercion can be eliminated. I am just making a distinction, unlike you, regarding institutions who’s principles are founded on violence, and institutions where that is not the case, like voluntary exchange(Markets).