Trying to look at the bigger picture for a moment. A lot of the philosophical debate about art I see here, and elsewhere on social media, is often very shallow and can be reduced to:
Does one believe that the value of the art-piece (be is music, paintings, film, or whatever) is created in the mind of the artist, or is it created in the mind of the consumer?
If you believe only in the former, AI art is an oxymoron and pointless. If you believe only the later, you're likely to rejoice at all the explosion of new content and culture we can expect in the coming years.
As far as I can tell though, most regular people think that the truth is somewhere in between these two extremes, where both both the creator and the consumer's thoughts are important in unison. That culture is about where the two meet each other, and help each other grow. But most of the arguments I've seen online seem to ignore or miss this dichotomy of views entirely, which unfortunately reduces the quality of the debate considerably.