Subtitle: the science of hereditary traits and peoples.
It’s funny how the science is moving more toward nature over time, away from nurture.
“Under ecologically adverse circumstances like the Ice Ages, adaptations are directed more at coping with the adverse physical environment than at competing with other groups. In such an environment, there would be less pressure for selection for extended kinship networks and highly collectivist groups. Ethnocentrism would be of no importance at all in combating the physical environment.
Europeans are therefore less ethnocentric than other groups—which makes them susceptible to being subverted by groups with a strong sense of in-group solidarity. Individualist cultures show relatively little emotional attachment to in-groups. Personal goals are paramount, and socialization emphasizes the importance of self-reliance, independence, individual responsibility, and “finding yourself.””
explains a lot.