My take on what the whack-job was trying to say (it would be far too bourgeois for her to simply SAY it): Disney was a right-winger (goose-stepping reference to Hitler-era Germany), and she finds it ironic that someone in the right-wing persuasion would make tons of money from an evil influence (witch). And most witches are portrayed darkly, which is done to make them look like Arabs. They went the other direction this time and made the witch white, which is really appropriate since it symbolizes all the evil of white domination of everybody else on Earth.
I think that's what she's trying to say. She must be a real joy to live with.
MM