That’s a good point, many countries have their own insular China towns as a result and their presence in those societies is very one sided. You even have China setting up extralegal police stations overseas, which shows the lack of respect it is fostering. I think discriminating immigration policiy based on ethnicities that would discriminate against you is quite reasonable, but that doesn’t mean someone from a bad country shouldn’t be allowed to immigrate to where you live, but that you have to make their ability to accept multiple cultures as the deciding factor, specially if you know they are coming from a society specially against it.

Ask Mongolia, Hong Kong, Tiber, or Taiwan how much they like you white knighting their homogenizing the country (and even that which really isn’t) into a single culture.