Kpop is pathos, simple emotions hit hard. I wouldn't call myself a stan anymore but it was my preferred genre for a significant period of my life and the songs just reach back and have unfettered access to my heart and my history.
Edit: also with the newjeans one. They've been fucked around by the shit that is the kpop industry, and they're just girls who want to vibe. You see Hanni just mixing up the choreo for the fun of it before the reality of holy shit here I am in front of literally tens of thousands of people sets in. She's just a girl on a stage. There are other factors too that would get into soft self doxxing territory, but kind of bring some of those feelings to hit closer to home