If the US government wants to atone for its immoral actions in the past it should pay reparations not institute a system of race based discrimination.
If, on the other hand, the US government wants to help disadvantaged people gain a level economic footing with the rest of the population they should use a much better predictor of disadvantage than skin color.
If, on the other hand, the US government wants to help disadvantaged people gain a level economic footing with the rest of the population they should use a much better predictor of disadvantage than skin color.