There's things I don't like about Gen Z, but most of it I understand the reason behind it. The not liking rock music thing is too bizarre though. Everyone liked rock music. If you were in grade school in the 2000s, you were liking music from the 70s, Pink Floyd, Led Zeppelin - through the 90s.
It seemed like every generation appreciated rock.
But I've heard that Gen Z does not like rock music. I don't get it. To me that's like "not liking apple pie"; it's such an American cornerstone that it's baffling.
Couple of points. Gen Z already graduated high school (or current seniors are the tail end of Gen Z), and whites just lost the majority of high school seniors this last year. So Gen Z should still be barely white.
Originally you said Hispanics are the majority. Not that it makes a huge difference, but they can't be the majority yet because of other non-white demos.