While differentiating ppl by race or ethnicity is considered by some to be politically incorrect, it is a fact of appearance and a good descriptive when you have to differentiate for some reason.
Do you like red grapes or white. Rye bread or wheat bread? Chocolate, Vanilla or Caramelo?
I once took The Miami Herald to task for describing the perp in a hit & run fatal car crash (are there any other kind here in Miami?) for describing what the guy's height, weight, apparent age, what he was wearing and even the fact of his day-growth whiskers but failed to mention whether the perp was white, black or Hispanic. They agreed that they failed to give a proper, usable description by omitting that info.
Racial & ethnic differences are a fact of life. No need to be afraid to acknowledge that.
Shale, the Polar Bear who's into Chocolate & Caramelo.