I'm not sure AI art will be the death of artists. The whole point of art (until now, granted) is that it's made by a human.
People don't go to a concert to hear the mathematically best song, they want to be with other humans to see the human(s) they all like perform a show.
Similarly, the "best" painting isn't necessarily the most beautiful or realistic looking, etc.
Until AI gains real, measurable intent in what it does, I think it's a cool party trick/brainstorming tool but nowhere near replacing artists.