Advocating for diverse viewpoints on campuses is now apparently akin to saying “All Lives Matter,” or pushing a supposedly sinister Make America Great Again plot. That’s according to two recent op-eds, penned by professors at Stanford and Johns Hopkins, opposing efforts to get professors and students with different opinions onto campus. Academia has lost public trust precisely because anyone not of the far-left is admonished on campuses. Accusing proponents of viewpoint diversity of being Trumpy conspiracists certainly doesn’t help. Any professor who truly cares about academia should want more views on campus, regardless of their own politics. “It’s profoundly anti-intellectual,...