He's just doing his job.
It's because you are a white horse and even though she is white, she feels the need to cry out calling you an oppressor
@Mortimer Smith Sr, there's actually no such thing as a white horse. They have black skin and are therefore technically all greys, unless they are an albino with pink eyes and white skin - and that's a whole new issue.
@Filker, you must be great at parties!
@Mortimer Smith Sr, even better at Trivial Pursuit.
Because you assumed her gender
She looks kind of like an albino orc from lotr.
Hold your horses...geez
It looks like that horse is going to see a werewolf transform.
Horse: wanna see me trigger feminism? Watch this