Groups of people have different behavior, and circumstances. You can look at data for out come and learn from it.
Blacks today, have higher crime rates. That's a BAD THING.
Lets look at the problem and see if we can see why, then address it, with the goal of reducing it.
Folding those numbers into the a bigger number TO HIDE THE PROBLEM, is not Right, not logically or morally.
Whether or not the groups in question are groups based on physical markers or social constructs, is irrelevant in this case and in most cases.