Saying that [a group of] people think all people, globally, are the same is really ridiculous. Maybe online it might seem that way but people in real life don’t.
I'm always curious whether these mistakes are intentional or not. I said "most". I was being partially hyperbolic (I honestly don't know if it's half or not, it depends on what conversation you observe really).
> they even do things like use them in debates about ways to improve our healthcare, for example
That's another commonality you will in public discussions: depending on the topic of conversation, cultures/genders are sometimes considered unique and sometimes not, by the same person. Their opinion changes depending on the topic of discussion. You see it online, you see it in the news, you see it in debates (online and real world).
If a politically correct person just came back from an overseas holiday, they will speak of the "richness" of the culture there, how they do some things in a different and often better way. (I agree with this perspective.)
The very same person, on the topic of immigration, will insist in complete seriousness, that there is no noteworthy cultural difference. Oh but also, we absolutely must have more immigration, because it increases diversity (despite the people not actually being different), which is good.
And I suppose it's necessary for me to explicitly point out: not all people do this, only some people.
Of course my comment is making sweeping and baseless assumptions. It is my attempt to sarcastically express the zeitgeist.
Even assuming you don't mean culture as a proxy for race or religion (which are obviously related but not the same as culture), times being what they are when you hear "culture" from a stranger you don't usually think "oh interesting, an anthropologist!". Instead it's usually time to buckle up for a broad generalization about a very large group of people the speaker is no more familiar with than anyone else.
Because that's objective reality. Cultures do have statistically common behaviors/traditions/norms, some "good", some "bad" - that is literally a fundamental part of the very definition of culture. Acknowledging this obvious fact in a reasonable conversation is no more wrong than saying it's still not ok to drink and drive despite the fact that most impaired drivers do not cause any harm.
Mischaracterizing the simple acknowledgement of patterns of behavior as a claim that all members of a group always act that way, and no improvement is possible because the culture is fundamentally flawed, is incredibly disingenuous. Anyone who makes this claim should be ashamed of themselves, as it is attitudes like this that contribute to perpetuating disunity between cultures who will always be distinct. Cultural uniqueness is usually a good thing (and should be preserved), but not always.
Do you mean politically incorrect in China? Otherwise, I'd just call this kind of study Anthropology (of some form).