Angels and Demons

Perhaps because he once was one of them, David Horowitz fully "gets" those leftists who have convinced themselves that they're "on the side of the angels":

(T)hink of progressives as a species of religious fundamentalists planning a redemption. Like fundamentalists they look at the world as fallen – a place corrupted by racism, sexism and class division. But the truly religious understand that we are the source of corruption and that redemption is only possible through the work of a Divinity. In contrast, progressives see themselves as the redeemers, which is why they are so dangerous. Because they regard those who oppose them as the eternally damned. Progressives are on a mission to create the kingdom of heaven on earth by redistributing income and using the state to enforce politically correct attitudes and practices in everyone’s life. They want to control what you do, and who you are, and even what you eat. For your own good, of course.

Of course. And if you balk at their "goodness," you reveal yourself to be inherently wicked (being that you're a "bigot," or a "bully," or a whateverophobe).