The art and challenge of collage is changing the context. Consider how the Avalanches work is entirely samples - but there’s something there that was not in the constituent parts.
Or video collage. YouTube Poops are another example of that kind of finding something new in what was already there - what about Robotnik’s PINGAS.
I posted a project on c/artshare which is chunks of a Christian courtship manual which I drowned in paint and then chopped out the most fucked up parts from. I don’t think that is something AI would do trained on a model of pop Christian literature - that’s something I a person with context and reactions to that literature would do. An AI can create pictures that might look nice, but they don’t have meaning. Art for me prioritizes meaning. - but I’m the kind of weirdo that burst into tears when I saw the replica of Fountain at the Tate.