Some people like Ikea
Other people like mass produced no name furniture.
That is an excellent analogy and I appreciate it.
My biggest long-term concern about AI is the long-term Ikea-ification of "everything" (books, movies, TV, music etc). I grant that 90% of "everything" is already highly derivative. Movie plots are highly recycled. Musicians are always "deeply inspired" by someone.
But then there's those gems... the handful of guitarists that can be identified in a few bars just because of the distinct, unique, special way. The handful of authors like Douglas Adams whose turn of phrase was uniquely his. The handful of performers like Monty Python, or Christopher Walken. Andrew Scott in Sherlock did something brand new and sublime with his Moriarty, in my opinion eclipsing the merely fantastic Benedict Cumberbatch.
What happens when artists, authors, musicians, writers, directors and the like are out of a job? What happens when all we can hope for is a recombination of what we've already got? Lego is awesome, but human creativity results in a steady flow of new parts that can in turn drive fresh assemblies.
Ikea has its place. But when it's impossible to get a shelf that fits an unusual room layout because nobody on the planet can make furniture that is off-menu... how boring is that? When once-in-a-lifetime talents like Freddy Mercury end up in a factory assembling Amazon delivery drones while we're all listening to some mashup of Taylor Swift, Eminem and Rammstein, haven't we made a mistake? When all penguins look the same because Berke Breathed couldn't get paid to invent Opus from Bloom County, didn't we make a mistake?
My concern isn't people using LLMs to "make my resume not look like shit because I'm only semi-illiterate but good at something else." My concern is Mozart, Weird Al, George Carlin, and da Vinci being members of a never-growing list of epic talents.
Maybe some day genAI will actually be able to truly invent and there will be a golden age of new and great material. But then... why do we even exist then, when we've outsourced not only the doing, but the inventing of "Everything"?