You jest, but accusing random conservatives of being closet good people might have some effect. Accuse a random fash of being one of "da jooz", accuse another of being gay, accuse another of secretly disagreeing with genocide, or another of secretly not being EEEEEEEEEEEEEEEEEEEEEVIL or something.

We're dealing with cartoon villains here, they know they're the villains but they do what they do because they think it's cool or they are simply subhuman, like a demon from DOOM who can't really help it, but needs to be opposed regardless.