Maxperson
Morkus from Orkus
There is no scientific proof that beauty is objective. At best there are things like symmetry that most people view as more attractive, but not all. And as I showed upthread, symmetry does not equate to beauty. You can have symmetrical ugly.Your premise does not support your conclusion.
Beliefs about the nature of the world and the cosmos have varied over time and by culture. That does not entail that the truth or falsity of general relativity is subjective.
Beliefs about the best way to raise children have varied over time and by culture. That does not entail that propositions about how it is good and bad for parents to treat their children are all purely subjective.
Beliefs about the permissible forms of marriage have varied over time and by culture, but this does not entail that changes to marriage norms have nothing to be said about them other than we changed our minds.
What people desire is (obviously) a subjective matter. That does not entail that what is desirable or valuable is subjective, and it certainly doesn't entail that these things are subjective in the way that tastes are.
Beauty is subjective.