The tricky part is that we won't know the difference between original human art and AI created art. I suppose in time we will have labels to go with our products like "made by humans" which will make them more expensive. Eventually however even here on hive people will be able to set up accounts and become completely fictional digital characters who post pictures of their lives every day and no one will know the difference.
Interestingly a friend of mine is selling furniture designs and he observed how his buyer doesn't actually care how the designs were made. Only that they look good and people will buy them. So, I hope you are right about our authentic creativity increasing in value over time but I'm not so sure about that...
For me, "AI" art in particular is the modern abstract art that does not have any of that beauty aspect that you get say when visiting true art at a gallery in Italy for example, and I think it never will have either. A hand painted or drawn piece of art has unique aspects of beauty that cannot be replicated.
The taste in art I believe is supposed to reflect the morality of a society...
Totally get that. Remember standing in the Van Gough Museum in Amsterdam literally crying at the scale and intensity of it all. Struggle to see how an AI could do that. In fact it can't create on its own, only impersonate the beauty of human artists. So without us it is useless and really just represents an extension of our current creativity.
One only has to look at NFTs to see what is happening on that front.
It seems the adoption of the philosophy of Nietzsche is where we are at.