I'll be straight - the only reason I can think of to discriminate based on race is for medical reasons - and that is by their doctor to diagnose specific illnesses. Can you give some more good reasons?
I think you’re on the right track. I replied to a sibling comment with some other good reasons for discriminating based on race. Basically, race is a pretty good shorthand for a shared experience of a group, and there are genuine instances where that shared experience can be leveraged to do good things.