)who has benefited from the belief that we can sort people according to race and that there are natural or biologically based differences between racial groups?

Typically, white people benefit from this. White Europeans invented the concept of race when they went into Africa and started splitting up tribes based on physical differences and treating the more "pure" Africans (those that fit European standards of beauty) with more respect, even going so far as to bait them into mistreating those seen as "dirty" or "savage."

The republican party