> They force us to confront how contingent our tastes are, and how the austere white-marble ideal was elevated by centuries of patriarchal, gatekept taste-making that declared one narrow aesthetic "timeless" and everything else vulgar.

But the whole point is that the white-marble ideal didn't come from "patriarchal, gatekept taste-making". That the statues were still mostly white marble at the time, with colored ornamental features, or very light pigmentation for something like a sunburn. That there is something timeless about human taste in that sense.

> If we end up concluding "actually, ancient art was basically compatible with modern elite taste" that's not just boring, it's actively harmful to diversity of ideas about beauty.

When ideology clashes with evidence, isn't it time to let go of the ideology? Also, nothing is "actively harmful" to diversity here. This isn't taking away from space in museums for African art or Chinese art or anything like that, or saying that they are any less beautiful or timeless themselves. Or taking anything away from Norman Rockwell paintings or hip-hop album covers or whatever you consider to be non-elite. The same timeless aesthetic principles can be at play, expressed in different cultural systems.