Only when the effectively extended family was ruled by "elders" was it egalitarian, and not always then. It's always been a "how do I get what I want, screw everyone else" at the end of the day. What we're talking about here is that everyone can pretty much have everything they want, materially, but not necessarily physically. Consider the cliffside home within a park, there's only 1. Only 1 person can own it. Who will it be? Property (land) is something that pretty much cannot be manufactured at this point. A facsimile may be created via virtual reality, but only 1 real one will exist. The facsimile will suit many, but not all. So it has been throughout the ages and has been the root cause of much of humanity's conflicts: I want this one (whatever).