I think you’re confusing art with « content ». When I experience art (of any kind, painting, music, writing, highbrow or lowbrow), I’m interacting with the artist, their intention, sensibility, politics, etc. I don’t feel that connection with statistically generated images or prompt engineers, sorry.
I do photography and I've heard people analyze my work and try and find some meaning, intention or a message that I'm trying to convey with it.
The reality is that I took 150 pictures and that was the one I liked the best. There's nothing to it for me except how it looks. The fact that I managed to capture that specific photo is hardly anything but an accident. There is no meaning to it and whatever meaning one imagines seeing there is just in their mind. It's a story you're telling yourself and you'd come up with a similar story from a piece made by AI that you didn't realize was such. If it stops being art at the moment you learn it was made by AI but you accept it as art when it was made by human even if it was, in fact, an accident, then that's exactly the gatekeeping I'm talking about.