If someone consumes what you call useless content, why would they use AI to produce anything else? It's not as if there isn't useful content around, already.
So there's a choice between low risk entertainment that caps out at like 20% of the value of what your favorite thing is, and higher risk entertainment that very well could still be terrible but might have a chance of being good.
AI bridges that gap to de-risk the high investment entertainment so you no longer have to make that choice.