Similarly, I'm not sure that argument is making the point those who deploy it intend to make.
But TBF, performance art theatre is art as well.
The end game IMO will be incorporation of AI art toolsets into commercial art workflows and a higher value placed on 100% human art (however that ends up being defined) and then we'll find something new and equally idiotic to trigger us or else we might run out of excuses and/or scapegoats for our malaise.
I don't even really believe serious artists need to totally exclude themselves from using genAI as a tool, and I've heard the same from real working artists (generally those who have established careers doing it). Unfortunately, that point inhabits the boring ideological center and is drowned out by the screaming from both extremes.