by redefining "rational" to include anything originating from human biology, you conflate the origin of a thought with its logical validity
While its true that humans are biological entities influenced by emotion, "rationality" refers to a specific process of evaluating claims based on logic and evidence. to claim that feelings are "exactly as rational" as ideas simply because they share a common source in the brain is a category error. it’s like arguing that a car's exhaust is "exactly as functional" as its engine because both are composed of the same metal.
It turns into a long tirade about how AI has made the median person's life worse and how they associate generated images with that. It could also be a short tirade.
But the point is more that it is that way, its not important (for the purposes of choosing whether to use AI art in a thing you distribute) _why_ people feel this way though, just that they do.