Homesteading Principal sounds like a perfect solution, but two things:

Firstly, harmony will be difficult because of the natural laws that dictate human behavior in large groups. There will be people that break the rules. I am not making a judgement here on the inherent goodness or badness of humankind. As Animals, some percentage of the population always deviates from the norm. Diversity and hence ability to adapt is lost if one strategy displaces all others.

Secondly, I'm not so sure its such a responsible idea to give people the right to assume ownership of any unclaimed resource. Ecosystems are encroached on enough already. Do we want a free for all?

I do like the idea though, and the sentiment, thanks for posting.