Ever since IU beat Big Bang back in Dec 26, 2010, she has fought KPop with the utmost hostility and antagonism.
If she could, she would have destroyed all traces of KPop and made the Korean Pop like what it was in 1990, all ballads, with an occasional dance act, and no groups.
https://www.allkpop.com/article/2022/05/the-celebrities-with-the-best-reputation-in-south-korea
I don't know how this survey was taken, but according to this,
(Only people relevant to KPop are mentioned.)
1. Yoo Jaesuk (was part of MSG Wannabe so is remotely relevant to KPop.)
2. IU
...
11. BTS (12. BTS' Kim Namjoon.)
(Yoona not counted since she is no longer part of Kpop.)
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In a previous survey I hinted out that among the under-14 crowd, IU has the biggest reputation, followed by BTS.
IU and BTS represent ideologies which are polar opposite of each other. BTS represents unity, world conquest, expansion, and the future; IU represents division, isolationism, domesticism , and the past.
History is full of fights between expansionism and reactionism, and although sometimes the forces for change won, in the end the old order usually prevailed because it was able to bide its time until the fervor for changes died down.
it seems that at least in Korea, IU has recaptured the leadership of Pop culture, which is a huge change since for the first time in 2017, BTS' world leadership is meeting a very serious challenge, by the one enemy which BTS could not beat because of her strong ties with Kakao (and Melon).
Lee JIeun and Yoo Heeyeol starred in a commercial of the Melon 100 charts, showing that despite of the change of ownership in Edam Entertainment (IU lost the control of her company to Kakao recently - she used to own 60% (30% thru her proxy) and Kakao 40%, but now Kakao owns 52.5% and she owns 47.5%.), her ties with Kakao are just as strong as ever.
BTS is having a Korean promotion for the first time since 2020, I believe with "On".
It did not promote in Korea when it was having billboard wins. Even Psy did promote Gangnam Style in Inkigayo when he was fighting Maroon 5.
And now it seems Hybe is feeling some heat in Korea which has led BTS to promote in Korea for its upcoming album.
How BTS losing Korea to IU (and, by corollary, the acts from newer generation) will play in the future is going to be a very interesting question, indeed.