And to be completely transparent about where I'm coming from: I'm the father of two mixed-race children and all this talk of "homogeneous societies" reeks to me of plain old racism that will hurt my kids. And I grew up in one of those European "homogeneous" countries that right-leaning racists love to talk about, too.

Thank you for supporting my thesis that praise for "homogeneous" societies is nothing but a dog whistle for plain old racism. I hope my children won't have to suffer people like you IRL.

Edit: It is hilarious that people like you praise places like the country where I was born and the country where my wife was born, but when we marry and have mixed-race children then suddenly you label our family as a menace to society.

What happened in those dense metropolitan cores was bad, and so the good people fled, happened over and over again and people didn't learn.

There's a reason Hong Kong can have extreme population density and low crime, and detroit and any where else filled with Obama's sons is simply a place where even progressives who say things like you do try to flee.