Democratic Presidential Debate

[xerx]

We know gene-culture interactions are real, but there are too many unknowns. So erring on side of the precautionary principle would certainly suggest severe restriction or outright exclusion.

Then why don't you oppose intermixing between different native populations inside the same country?

I understand that there are genetic differences not covered by ethnicity or race, which is why there are genetic differences within the same ethnicity or race. However, the reason to keep nations homogenuous ethnically within Europe, Asia and Africa is to retain those ethnicities within their original home nations at have been around for thousands of years. Even if countries and borders have changed in the past, the people have not.

See comment above; why don't you oppose homogenization between different native populations inside the same country?