At least for now, AI sucks at creativity. There is an initial "wow" effect when you can generate an image of an astronaut riding a unicorn on the moon with a simple prompt, but as you try to play a bit more with it, you notice that unless you inject some of your own creativity, you won't get very far, no matter the medium.

Passed some point, if you are good at what you are doing, the AI will stop helping and become a burden, because you will want precise control, and AI in its current form (deep learning) is not good at it.

There is a reason we talk about "AI slop", you simply cannot let an AI make creative decisions and expect a good result.

By creative I don't just mean artistic. For code, AI works for the least creative tasks, like ports, generic-looking CRUD apps, etc...

As for work, we have already eliminated most of the need for human work. By "need", I mean survival: food, shelter, these kinds of thing. Most of human production goes to comfort, entertainment, luxury, etc... We will find stuff to do that isn't bloodshed. In fact, as times went on, we spend more on saving people than killing them, judging by a global increase in life expectancy. Why would AI reverse the trend?