I'm guessing Foreign Policy loves China too much to call them totalitarian.

"To be a modern-day Chinese nationalist is to unknowingly agree to all of that and to become a de facto Han supremacist."

My Chinese SO has been called a "race traitor" by quite a few younger Chinese (of both genders) people who come to the UK to study.

One of her friends married an English man, her parents excommunicated her, saying that she had "betrayed China".

I have heard of Chinese students in the UK unironically comparing black students to monkeys and questioning how they got in (since monkeys are stupid).

I would call it ethno-nationalism.

Even ethno-nationalism isn't quite right. After all, my country split off along ethnic and linguistic lines, based on explicit justifications that the land belongs to our 'kin'. But all without any appeals to supremacy, national or ethnic (at least, such appeals didn't have much traction), and other ethnic groups living here were granted citizenship just like everyone else, and even special representation by guaranteed seats for minority groups in parliament.

What you're describing could maybe be called ethnic hate/supremacism?

"Patriotism is when love of your own people comes first; nationalism, when hate for people other than your own comes first." --Charles de Gaulle