"There is nothing natural and necessary about political and economic inequality. "
No one, Wojtek especially, said there was anything natural or necessary about political or economic inequality. Obviously, anything humans do is natural -- from building a socialist society to raping people. Suffering a hurricane and getting cancer are also natural.
We don't need to look at past tribal clans through ideological filters and pretend there's a more egalitarian past from which we've strayed. Christians like to look at the past through ideological filters when proving Creationism. Let's not do that, too. If old societies sucked and were undesirable, let's just say it. Most, if not all of them, were, with maybe a few semi-decent ones here and there across millenia, but none I'd rather be in now, thank you. And even those were permeated with a high degree of supersttitious belief, which I'm no fan of, either. The good society has yet to exist, there is no good model in the past, only hints here and there, more often in places like Spain 1936 than 12,000 BC.
-B.