If a popular Chinese actor were to insinuate that Scotland was an independent country, would that not be offensive to the people of the UK?
LOL. No. The people in the UK aren’t that fragile, and Scotland and Ireland are referred to by their names by default. Everyone says “Scotland” and “Ireland”, and they’re semi-independent and have their own free governments. Everyone is okay with it. Everyone can say Alaska and Quebec. And for the record, John Cena didn’t infer that Taiwan was an independent country, he merely referred to it by its name, but of course you wouldn’t bother fact checking that.
He literally did not. He merely said its name, which should be very standard.