IMO, the 'why' is due to how mature the industry is - it'll absolutely be the future for every profession, given enough time. It's the natural distribution of wealth in our society: Few have too much, most have not enough.

We're all "doomed" if this is the case.

Artists will exist as long as they can entertain the elite with their clown antics.

Be entertaining. Be outrageous. Be endearing. An AI can't cut off their ear.