Typing "big boobs anime girl pink hair rain low lighting trending on artstation" into a text box is not human involvement in art

First, go ahead and get the shaming of me for asking this out of the way, and after that's over with, why not?

You said it yourself,

No, there just needs to be some sort of human involvement.

A human was involved in dreaming up a scene depicting something, and proceeded to use their tools to manifest their imagination into an image. They likely chose their tool (different models), used their preferred technique (selecting the right settings, right keywords, and probably regenerated areas that depicted 8 fingers on a hand), and the result was an image that they visualized.

Sounds like human involvement to me, it's not like lightning struck wood and boom, there's a big boobed anime girl with pink hair in low lightning manifest.

Again, gatekeeping whether or not it is art seems kinda silly. The proper attack vectors, IMO, are whether it's good art, with a side of whether it's stolen art.