That presumes that the rough approximation of expertise produced by AI is enough to get the job done, despite everyone's millennia-long experience that the whole world has a rough approximation of expertise, and the way you hold a job is by going the rest of the way.

The storyboard canard is the perfect encapsulation of this: a neophyte with no ability to make filmed entertainment can now pay $20 a month to enjoy the accoutrements of making filmed entertainment without having to be in any danger of actually accomplishing anything, while the people selling her on this idea are giving someone $1100 a day to draft their ideas. And I say this as an apex predator in a field that has already experienced an "AI-like" mass extinction event: there are far fewer professional mixers now than there were ten years ago but not because AI can do it, but because the massive proliferation of untalented executives who don't understand post-production made everyone read their television. If you don't need it to actually sound good, you've been able to do it at your house since shortly after Nirvana's "Nevermind" came out. If you need someone to pay for it, I'm right here with $30k worth of Pro Tools.

It will come down to whether people want their efforts to be successful or not. If they couldn't afford for them to be successful before, AI is not going to change that. And if they could afford for them to be successful, they'll keep paying humans because nobody wants a surprise fifth leg on their cat.