Well, every fandom (and even faction within a fandom) has its Mean Girls. It’s not like the Uber’s are unique in that regard.
Some of the Ubers became Antis. Let’s not forget that both groups have taken to doxxing and harassing others for having a different opinion. The fact that they enable a malignant narc like SoFail, that they force gifts upon and ridicule their supposed idol is in keeping with their character. Toxic is the only way to describe it. The Ubers are the type of “fans” that no public figure needs, the ones PR was originally trying to shake off and the ones that keep sabotaging the Rat’s efforts.