A lot of popular singers/bands. For some reason, singers and bands seem to inspire some intense devotion. Taylor Swift is the classic example here, along with kpop as a whole. Neither is really my jam, but their insane fans have made me develop a bit of a negative association to them because of the unhinged behavior. I have also included Beyonce before but it seems like maybe her fans have chilled out a little.

Also, Disney adults. Disney is fine, I maybe mildly dislike the company but appreciate/have nostalgia for a lot of the movies. But the grown 25+ adults who are obsessed with Disney are very cringe and make me dislike Disney as a whole more.