FFXIV is an MMORPG, which a large part of the point of an MMORPG is the social aspects. The glamour system adds value to the social aspect of the game by giving players ways to better express themselves through their characters. SE is very aware of this, it's the whole reason why Adventure plates and Instant Portraits were even added to the game, as they're yet another way for players to express themselves and better leverage the social aspect of the game.
You have the option to not get upset about something unimportant, or to just play something different that better caters to your delicate sensibilities and narrow definition of 'appropriate aesthetics'.
Nice ad hominem thrown in there. I honestly really just kind of feel bad for you that other players choosing how their characters look is so distressing. Maybe MMORPGs aren't your thing.