In either case race is taken outside of history.
All efforts to replace historical explanations of various oppressive or exploitative features of the world are, ultimately, reactionary.
Everyone admits (I believe) that something fundamentally new happened in the late 18th and early 19th centuries: the invention of *biologically* based race. Why are people so damned anxious to subordinate that fact to some alleged racism that goes back and back and back. The hierarchical assumptions of pre-capitalist tributary societies were fundamentally different and had a fundamentally different historical base than do the various attempts of the last 200 years to establish some sort of "scientific" rationale for oppression and exploitation.
Carrol