Why would you think you're the arbiter of what's cool and what fits to which gender? Nobody is, people will choose what they like no matter what you think. Do yourself a favor and don't get involved into things you don't enjoy, but others do. It's fighting windmills.

Besides, if you ever studied a bit about genders, you'd know pink used to be considered a boy color, and blue - a female one. So the main color of Lux's skin shouldn't be a problem to the likes of you. Unless a minor thing like this destroys your weak sense of manliness.