I can't prove this scientifically of philosophically, but beauty is objective. Confusion happens because not nearly everyone agrees on what is beautiful. Resolution happens when we accept that claiming something is beautiful or ugly is irrelevant to whether everyone feels the same emotional or physiological response to the same stimuli (even if only for a moment, and even if someone denies it).
So beauty is objective, because everyone feels the same emotional or physiological response to the same stimuli. It's just that some people can easily acquire beautiful things, which makes them Appreciative. Others can't easily acquire beautiful things but believe in their ability to eventually do so, which makes them Aspirational. And still others can't easily acquire beautiful things and don't believe they ever will, which makes them either Peaceful or Destructive.
Every political struggle pits the Destructives versus everyone else. Leftists are destructive, as are certain hyper religious conservatives, but we all have the same response to beauty.
So beauty is objective, because everyone feels the same emotional or physiological response to the same stimuli. It's just that some people can easily acquire beautiful things, which makes them Appreciative. Others can't easily acquire beautiful things but believe in their ability to eventually do so, which makes them Aspirational. And still others can't easily acquire beautiful things and don't believe they ever will, which makes them either Peaceful or Destructive.
Every political struggle pits the Destructives versus everyone else. Leftists are destructive, as are certain hyper religious conservatives, but we all have the same response to beauty.