Explanations based on evolutionary psychology tend to neglect the social or psychological adaptations that are responsible for complex society. The validity of the claim that we would be happier as hunter gatherers, for example, is really difficult to assess from the perspective of someone embedded in modern human society. The high level of interdependence (sometimes called organic solidarity) changes everything.

The tendency of evolutionary psychology to assert that life is governed by primal instincts established in harsher times isn't politically neutral.