An example of this is Jisoo from blackpink, why do you close minded people not understand that she is born and raised in Korea? She can't master english like you think she should, and she can understand a lot she just has a accent which is normal. That goes for every idol, it's not funny to say someone cant speak English or say they sound weird.
I really worry about American people sometimes, that's like me saying you should speak Fluent Korean because you listen to kpop, I dont understand why we make jokes about their pronunciation like it's funny when it's not.
Idols don't live in America, they dont have to study english for hours to be fluent. This ties in with fans commenting "speak english I cant understand" on Vlives. This is kpop, they sing and talk in korean. You learn Korean your self and stop flooding the comments with all that nonsense. It's so ignorant to me.