>>513310999 (OP)The fix for the United States is federally enforced segregation and a 4 state system.
>White>Black >Native/Hispanic>Other/All How you would fix the mixed race problem is they would be put with Other/All which would be hell mode or they took on the permanent label of there father.
The country is 50% non-white at this point and you could deport probably 20 mill in a decade if you actually tried but your better off putting lines in the ground and a border crossing system that could be used only for work or gov.