Not a strawmen, you said it yourself.
Should I quote you? Let's do that...
Unfortunately, I know a little about this. My oldest is living in Xian. If he wasn't married to a Chinese woman, and if he didn't speak (fairly) fluent Chinese, he'd be screwed. He gets challenged for IDs everywhere he goes. And many businesses have begun refusing service to foreigners. He's considering coming home, but then my daughter-in-law would risk facing the same kind of stupidity here.
Blue text, you're describing institutional racism towards your son in China.
Nope. I'm describing plain ole bigotry and discrimination by businesses and people. Nothing "institutional" about it. Just racism and xenophobia.
I don't get you. It's like you mostly agree with me - but you know I don't like Trump so you feel honor bound to fight with me. Hehe.... whatever.
You're trying to pull yourself from shit you got into, but you can't.
You said your son is asked for ID everywhere he goes. Who's asking him for ID? Police perhaps?
If so, that would be institutional thing. Because, people have no reason to ask him for ID.