Utah fan ingredients:
1. From Utah, which is gonna make them weird in general
2. Many are not Mormon, and not just non-Mormon, but ex-Mormon, which adds an element of spite and meanness to the residual Mormon weirdness
3. Their time in the Pac was extremely validating, probably over-validating
They’re basically like bizarro BYU, which is nice weird. Utah is mean, elitist weird.
It’s a very bizarre and odd mix.
Edit: add that they think they’re superior to BYU, especially with the PAC success, and it infuriates them that no one can see how great they are. I think they hate BYU way more than BYU hates them.