This supports my primary claim that the crash of megafauna caused the creation of property, induced the neolithic societal transition, and set the stage for the unsustainable society we have now - based on fear of scarcity.
How does this fit into a North American context, where many cultures at the point of European contact (i.e. Haudenosaunee, Algonquin, Inuit) practiced communal property? It seems they stayed egalitarian long after the extinction of local megafauna, and in the case of the Haudenosaunee, long after the adoption of agriculture (the Three Sisters).