Generally if a comment makes multiple points, I don't feel I have to refrain from replying if I only have a response to one of them. I'm not here to prove you wrong, just to make whatever point I have.
There's plenty of music available even if only some hobbyists record. In terms of musical options, I'd say we're in a golden age. Used to be, we could only listen to whatever some record label was willing to fund. Before that, just local musicians. Now we can pull up all sorts of obscure musicians all over the world. Recently I went down a rabbit hole of famous rock songs played in medieval style on period instruments; that's not something I'd be likely to find at a record store.
Recording isn't the barrier it used to be, and it'll keep getting easier to make good mixes as the software improves.
Meanwhile, it's likely that the power law will continue to apply, and plenty of especially talented musicians will hit the big time and do live touring. In fact, as more music is generated by AI, I expect people seeking authenticity will develop more interest in live music.