I've pointed out a few times before now that evolution tends to create kludges, and that the human species seems to be a combination of a reasoning mind grafted into a primate that seems to demand social/tribal heirarchy.

The way I put it back then was that if you stuck Ayn Rand and Jane Goodall on a desert island together for a year we might get an interesting set of ideas.

Frankly, given this constant inherent tension between individualism and collectivism, it says a lot for our species that we're doing as well as we are.

I wonder what things would be like if we had evolved from a naturally individualistic animal. Orangutans are more solitary than other primates, for example.

Your second and third paragraph are a bit odd, given historical precendents. I think there's more than enough evidence that the Left is just as capable of tyranny as anyone else.