Anthropology also shows widespread cannibalism.

I agree that many traditional cultures engage in egalitarianism, but genocide and mass-rapes, wars and slavery campaigns, are baked into the anthropological history.

Economic activity, expressed in water and caloric access, is the root of numerous ongoing conflicts (“tribal” and national), and the cause of many historical eradications of competition.

Capitalism seeks to maximize capital, anthropology says life just as brutal as it was before we named and systematized it. Cost benefit doesn’t need dollars as a unit of measure to be effective.