…are the race-reductionist equivalent of vulgar Marxists who view everything through the lens of the eternal struggle of the bourgeoisie and proletariat. All they’re doing is taking a crude interpretation of Marxist theory and using race instead of class. Even the Marxists recognise that that the class struggle changes over time—that’s why it’s called dialectical materialism, not static materialism.
Honestly, I’m more willing to buy that a transactional relationship, such as the worker–owner dichotomy in conventional labour structures, or the dichotomy between political leaders and constituents, is more likely to be the source of systemic oppression, rather than the relationship between, say, Japanese and Koreans. But some inequitable balances of power, such as sexism, undoubtedly predated societies that were able to develop complex transactional relationships. (Also, all these relationships—yes, even culture—are mutable. People marry into different cultures, start companies, lose all their money while gambling in Vegas. The perceived value of different relationships can change over time as well, even if the traits of a group have not—for example, the Germans are viewed differently from how they were in the early 20th century.)