First, your prediction is analogous to something like "in 2 years, 50% of images used in {ad platform}/getty, will be AI-generated". Your prediction is actually "AI-generated without human editing". This is not true today and will not be true in 2 years from now even for images.

I am not a musician, have no musical (or any other art, actually) talent and have kept up (shallowly) with state-of-the-art music generation for a decade (because of idiocy kurzweil has spewed out).

I am "reacting strongly" because I detest singularitarians and everything they stand for. This board in particular has been a hotbed of delusion and idiocy for the last 6 months in every single AI thread I have read comments in.