Basically, wizarding Britain is run as a sort of caste system these days. At the top are the Death Eaters—The Party, you might call them. They pretty much run the show. They have all the power and more or less have the run of the place. Beneath them are all the other purebloods, who are given full rights as citizens, then the half-bloods and the mudbloods—yes, mudbloods. That’s the official term nowadays. So’s "the Dark Lord," for that matter. Then the bottom of the ladder, the Untouchables of this perverted system, are the non-wizards—not just muggles, but goblins, elves, and various other magical races. There’s a bigger gap than you might think between mudbloods and muggles. Mudbloods actually do still have some rights. We did even under Umbridge. Muggles and other non-wizards have no rights at all. It’s pretty much open season on them.