Well I guess we interpret star differently. Also its hard to judge as the 3rd gen had the euphoric rise of social media while 2nd gen ended while it was gaining popularity. K media has been more excepted in the west too since the 3rd I think that is down to the internet rather then the quality of the 2nd gen.
I still wouldn't put Hyeri in that list though, she is popular, been in big dramas and won awards but when I think of a star I also include global fame and she's not as the level of the others mentioned.
Lol.
She definitely has global fame after Friendly Rivalry. Trust me.
Just search it up on x