Would it still be a shit take to say that Japan is better off being Japanese? Or that it's better for Israel to be Jewish?
Homogeneous societies always work better. Everybody likes and trusts each other. The rules are easier to understand. People are friendlier. Education is better. There's less violence. People take pride in their communities. Everybody's "on the same page", cooperating. Kids can run around and be kids and their parents don't have to worry.