Well, here's the deal.
He can be Chinese, but first, China gets to pass laws banning certain nationalities from entering the country. Then, they can make a gentleman's agreement to de facto ban entire ethnicities. Soon after, China will allow lynchings of members of those groups to go unpunished. (Maybe they already do this.) Those immigrants aren't allowed to own property, or marry Chinese people. Then when China decides it needs to go to war against a certain country, they ask a neighboring country for help to fight them, in exchange for lifting the immigration ban, in that they allow 15 people from that nationality to enter per year. Then just in case, they should round up all the people of the nationality they are at war with, regardless of if they were born in China or not, and feel like they are all Chinese and throw them in a detainment camp and take all their property. And if people are mad about it, make them take a loyalty test. Those that fail get sent to a different camp. Oh, all these camps are ridiculously remote and far from where they originally settled and built lives. OK, once the war is over, wait a while to let them out the camps. Because reasons. Then, for the next several decades, all their children will be subjected to being treated like foreigners, regardless of their Chinese fluency or how little connection they may feel to their country of ancestral origin. This should allow time for Chinese culture to develop two sets of stereotypes, one set is patently demeaning and offensive. The other will be patronizing and offensive, but the Chinese will tell their children that they are good stereotypes, and they have it much better than say, oh, the Uighurs. Then China will use them as a wedge/tool against other ethnic groups. And the whole time, China will assume everyone that looks like them is from like 3 places, US, Canada and...Belgium.
Yeah. That sounds like a plan.