And yet you can look at some AI generated pieces and feel what you would feel if a human being made them, which implies that there is no "simulation of experience or emotion" in art, apart from what the viewer imparts to it. All an artist really brings is technique, which can be replicated.

I would also disagree with you that pure entertainment has no artistic value, simply because I don't think "pure entertainment" entirely divorced from human experience or emotion exists. Even pornography speaks to a fundamental human desire.