Your response is valid but is somewhat at cross-purposes to what I wanted to suggest but didn't have time to explain properly.
I imagined all the possible ways of organising communities coming into peoples' minds, all over the world and throughout history, and being tried. Those which worked well would survive and be passed on, while those that didn't would be replaced - or, indeed, the community would simply dwindle to nothing.
Some systems emerge again and again and survive pretty well: the tribal chief supported by his council of elders, for instance. Some emerge again and again and just don't survive, and here I would have to put pure communist and pure anarchist groups, since they always seem to degenerate into dictatorships or simply disintegrate from their internal stresses.
I am not at all considering whether any of these systems are morally good or bad, or whether they lead to people's happiness - just whether they work well enough to persist, which seems to me to be an essential quality of any system of government.