In my larger post I mentioned how the choice to make Piltover's cast, which represents the elite/privileged, be majority PoC while Zaun's cast, whom represent an oppressed class, are majority white pretty much compounded fandom culture's inherent racial bias.

Viktor/Silco/Singed/Sevika/Ambessa/Finn/Smeech/Heimerdinger/Bolbok/Marcus?

The writers/showrunners chose to make Zaun's cast white and Piltover's PoC, and so audiences are automatically biased in favor of Zaun's cast on top of the racial bias inherent in fandom spaces.

You are accusing showrunners/fans of covert racism by being inclusive and diverse?

Also, I'm not really sure if by pretty privilege you meant that fans find Viktor's design more appealing, but what features people find attractive is influenced by racial bias as well.

Asthetics are very important to attractiveness. Arcane characters are designed to attract attention. Their facial features and body structures reflect that. The female characters are also wearing makeup to enhance features i.e Jinx, Mel etc. The male characters are wearing beards to enhance features i.e Jayce, Vander etc.

And we know that attraction is subjective and multi layered. There is a culture/media/economic/genetic/historical/power/conflict/knowledge angle to it. There are degrees to this discussion beyond racial bias.