I don’t know who you’re quoting. Art is made by people, it’s literally in the definition of the word art. Google it. You haven’t disproven it by observing gravity. Idk what to tell you.
If there is no ambiguity: is a man pushing a button on a camera art? A man pushing a button on an image generator? Yes or no answer because it's very simple as you say, no whining or word soup ahah