Please help me out here. I was never a huge Tool fan, but I did have Undertow, but I’m missing the joke here.

A lot of the lyrics to tool songs focus on transcendental, spiritual, or psychedelic experiences. They also feature complicated compositions and a high degree of technical skill. As a consequence, some folks that have a “I’m on a higher plane of existence compared to you sheeple” attitude are attracted to the band. Which I think is what the meme is poking fun of.

There is some truth to it I suppose. When pusicfer (whose lead is the singer from tool) released Apocalyptical during the pandemic (a song that was clearly criticizing the stupidity of covid deniers/misinformation consumers) a lot of tool fans got upset because the song was not consistent with their conspiratorial world-view