But the outright desire for an ethnostate or a monoculture are both politically untenable in the West. Never mind that every country we idolize, e.g. Japan, Scandinavia, are essentially that.
America is not a good candidate for that for various reasons, but I see no reason that Denmark or Japan shouldn't be able to codify their ethnic makeup and adjust immigration policy accordingly. As a Korean, it is really nice to visit Korea and feel among 'my people', even though culturally I'm an American. I've heard very similar things from my white friends who move to Utah or visit Scandinavia. It's a feeling that seems to be deeply embedded in the lizard brain, to be among your tribe, identified visually and then culturally. Countries have the right to cultivate this feeling among their citizens.