Earlier quoted context omitted.
As someone who does not frequent nightclubs, I don't really see the problem with a self-selecting group of people with standards? Some people don't want to see you, and that's their business.
About a decade ago there was a huge controversy where I live about many nightclubs limiting the number of immigrant male patrons per night. I guess you don't see a problem with that either? "Protected class" is a cop out because the question isn't about what the law says but what is moral.
I mean, some nightclubs have immigrants, but nobody goes there because there are too many immigrants.
It's sort of the same thing here with TikTok: on one hand we say that it's bad to ethnically discriminate in nightclubs, on the other hand we don't go to the 'urban' nightclubs, and take it as a good signal when we read the immigrant patrons online complaining about ethnic discrimination.