I don't think that's what the problem is.Funny, people are throwing a shitfit over a couple van loads of white people from South Africa but roll the carpet out for plane loads of discards from every other sunny place on earth.
The problem is that for the better part of the last decade Trump and his proxies have been railing on immigrants coming from "shithole" countries, that America is for Americans and not really care about people escaping political persecution. If nothing else, you'd have to agree that essentially doing an about-face on all that rhetoric and making an exception for white South Africans isn't a good optic.