 That can't be dangerous because it's A, true, and it's B, not the sort of thing that once acknowledged will plausibly bring harm to any person or group. But the less decade-long campaign to label Trump a Hitlerian dictator who wants to destroy democracy is actually dangerous because it's A, not true, and it's B, the sort of thing that if believed is all but guaranteed to bring about exactly the result we saw on Saturday. That's the point.