I believe in cultural relativity, but that ends at, for example, mass concentration camps. Your argument is basically "let any country do whatever they want within their borders" and I don't think that makes sense. Or, there are limits to that. I would also argue that the acceptance of totalitarian values as "cultural norms" isn't entirely correct. Historical Chinese culture has little to do with the social credit system and the CCP is not Chinese culture.
I do not think cultural relativism, if you want to call it that way, means that one can never judge what others do, and I'm surprised my comment came across as this.
I'd like to help you realize that despite all your values of freedom of speech, free thinking and so on, this very set of strong emotional values makes you live in a fantasy world where countries/cultures are impersonated by good or bad characters, the actions of which are either justified or not despite they are all equally questionable.
Of course the USA have had concentration camps (China and France also), of course people were interned based on religion or skin color also in the USA (China and France too), of course the USA invaded countries while lying in the face of everybody about the reasons (like France and China also did). I don't know, whatch Powell's speech to the UN about the weapons of mass destruction in a loop until it clicks?
All countries (I included France just because I happen to write this from there) would likely do the same on the same circumstances regardless of their official values, because no country act because of values. Countries are not real characters, they do not act, and have no values. Individuals do and have, and it is important that individuals of the most powerful country in the world would adopt another set of guiding values than "when that's my gouvernement doing it it's Ok but when that's others it's evil". Because they have been subjugated by their ruling class[1] for a long time now, and the consequences have been dramatic.
