[dmingod666]

This ignores a major point that the audience of that art does not need to be contemporary.

If a masterpiece painting is created by a blind artist, never seen by anyone including himself for 500 years. Then it is discovered after 500 years. What is the status of this art through this timeline?

Art and beauty remain what they are irrespective of an audience.

Now, whether something is really art or beautiful, and who decides that are entirely different questions..