So we have a problem: this person’s beliefs are disgusting; this person seems to be just a person. Okay, so maybe he isn’t a monster as such, but that doesn’t mean that he’s not seriously messed up: morally corrupted (a “hater”) or in the grip of some kind of psychological affliction (“fearful,” “angry,” “bitter”). Note the embedded assumption in such statements: that error results from pathology. He couldn’t be wrong if he weren’t morally or psychologically seriously dysfunctional—that’s the implicit or explicit message.
