Guys can we cool it with the fairies = trannies thing already, the triad color scheme comes from cotton candy which is called fairy floss.

>swirlix is fairy floss/cotton candy
>Hatterene is based on a "hattara" female forest troll, the same word in the same language means cotton candy hence the color scheme
>g. ponyta's mane is supposed to look like cotton candy because people often are vaguely reminded of unicorns when they see cotton candy on the typical white cone-shaped stick
>mega altaria and whimsicott have other reasons for being fairy but I bet part of it is because they have cottony fluff like cotton candy

Stuff like Primarina and Sylveon is literally just coincidence, pink and white are just what you'd expect for fairies, and baby blue happens to make an excellent complement color