I like what you say, and would like to believe it but remain skeptical. I'm actually reading a really interesting book called "The Dawn of Everything" which posits that before the emergence of states and kings, there existed large urban societies -- notably in MesoAmerica, but also elsewhere-- which appear to have been collaborative, and prosperous without the need for centralized authority. And which of course were overtaken in time by more aggressive societies. It's a hypothesis at this point, of course, because the evidence remains limited, but interesting to speculate on.
I do feel the environmental crisis we've brought on ourselves is soon going to subsume our social issues as the main problem we have to deal with.
I will, however keep reading your work and consider greater optimism :).