The issue with racism is that it violates the principle of justice as individual. Someone is being made to suffer for something someone else entirely did, united only by surface characteristics. (E.g., being black is not an ideology and does not cause behavior in the absence of a cultural context which makes it ideological/cultural/political.)

So breaking the principle of individual justice to combat racism probably isn’t such a great idea.

However, while race does not intrinsically alter behavior, culture, ideology, and religion do. Some of this is mostly just aesthetics, like architecture or food. But some of it has much deeper consequences, like multigenerational cousin marriage, or “honor” killings.

However, unlike race (currently), culture is fortunately somewhat mutable. There are limits, however, particularly with regard to ideology.

I guess what I’m saying here is that America should limit the number of North Korean refugees it takes after the War, until it can be determined how safe former adherents of Juche coming over in one mass are, but should be willing to take many thousands of refugees from South Korea after Seoul is destroyed. In-kind aid should be delivered instead, and infrastructure reconstruction should proceed with more funding than originally scheduled.