death to capslock

I can see one upside to Fenrir being a Muggle, actually. Or if not Fenrir, then at least some of the werewolves. See, that way not only do you have wizards oppressing wizard-born werewolves, but you have innocent Muggles becoming victims of this magical disease, and then instead of the wizards trying to make up for the poor Muggle's life getting ruined by magical forces they didn't know about and couldn't fight, the wizards go and oppress the poor Muggle. So a mixed community of Muggle and wizard-born werewolves would be pretty interesting, I think - wizards and Muggles banding together, united by their hatred of mainstream wizarding society.