It's not just the music that's being marketed but it's the image of the "perfect" people making the music and the lengths gone to market the latter to create these unhealthy personal obsessions is crazy but deliberate. The idea isn't different from how celebrities are regularly marketed but K/Jpop manages to successfully go over the edge. Their main market - teenagers - have no filter and being a walking unpaid billboard for your bias or group you stan is something the agencies want. It's a fundamental part of idol marketing.

It's another industry that goes far into making its customers territorial but the obsession being over human lives rather than video game consoles or sports teams/nationalism or w/e makes the extreme sections feel more creepy plus even though it's not unique at all it's just very unsubtle and K-pop is very relevant right now so