Well, labelling someone as mentally ill is at least a step up from the people the believe stuff like, "I was depressed once, but pulled myself up by the bootstraps, therefore all this depression stuff is a bunch of hogwash!"
Perhaps. Except that much mental illness would be the equivalent of being hit by a car and needing emergency care and possibly months or years of intervention, not getting any of it and then being blamed for their inability to walk. Like they are merely lazy or something.