They don't like it because it's not Bitcoin. Like a religion or some football club or your favorite beer or something.

Their peers are also maxis, to fall outside of the groupthink would make them outcasts.

After years of repeating the same nonsense, it would also be highly cognitively dissonant to admit that yes, there is good stuff in crypto beyond Bitcoin too.

In other words, a very hard case of ego grasping and attachment.