Because they don't like the implications that "might is right". Evolution itself is survival of the fittest and "will to power", so it naturally follows that ci

Because they don't like the implications that "might is right". Evolution itself is survival of the fittest and "will to power", so it naturally follows that civilizations would advance along the same axis of complexity. Technology developing along with methods of conquest and war isn't a very controversial claim, not sure why this one would be.