Property Rights aren't an inherent part of nature just because humans like to be greedy.
Property Rights exist, at best, as part of a human narrative that we have some interest in designating a legal owner for a piece of dirt. Without humans, the dirt is not owned. With humans, we say we own the dirt (but there is no actual, objective ownership).
>People like yourself, who don't see a value in others property
I don't think GP made that point, rather that until Humans come along, no ownership, ie, public ownership, is the default. The land is owned by nobody until someone buys it.
This can be shown with an example; Mars. Who, at this current moment, owns mars? All the dirt on mars must, by your argument, be owned by someone.