Prove me wrong then.
What's GenZ doing that is comparable to what any previous generation was doing in their 18-30 age bracket years artistically, musically, culturally, etc.?
I don't think it's their fault BTW. I think it's previous generations fault for creating the system that stole their attention. Every previous generation passed to the next generation a vocabulary and a set of tools to build new culture... until GenX and Millennials (my own cohorts) passed tools to stare at small rectangles and scroll.
Could it be that the traditional avenues are closed off to them? Just like everything in our gerontocratic society, studios are still led by old white men who act as gatekeepers. I would expect young voices to be heard in channels where they actually have a chance of being heard (which is also where I personally will never hear them because I don't frequent those channels). Incidentally, when a young artist does get a chance in "legacy media" the result is surprisingly successful (Backrooms and Obsession surpassed all expectations).