In an op-ed in last Sunday’s Los Angeles Times, I teasingly challenged liberals to—gasp!—actually listen to Rush Limbaugh with an open mind. The reaction was predictable, but no less hilarious for that. Email after email practically boiling with viciousness, foul language and hate, accused Limbaugh—and me—of being vicious, foul-mouthed and hateful. Don’t these people own mirrors? I mean, don’t they ever look at their reflections and think, “Wait… Limbaugh does a radio show about public figures and ideas… Klavan writes an op-ed in a newspaper… then I send a personal email full of four-letter words, ad hominem attacks and vitriol…...