> No dual citizenship at all, most probably no citizenship.

Citizenship is basically impossible unless you are born to Chinese parents, but work visas in China are lightyears easier to get than the US H1B shitshow. In China all you need is an employer's invitation and you can more or less get a work visa, especially if it's for a skilled job in science, technology, or finance.

> Not going to even mention the obscene difference in racism

I'm non-white and I've felt far more racism in the US than China. That isn't to say racism doesn't exist, but it's much less.

> OR the language barrier, both of which are enormous factors.

Language is not a barrier unless you think it is. The IQ of people in China isn't particularly different than the IQ of people anywhere else in the world. If 1 billion people can learn a language, you can.