“How many lives are 1200 Israelis worth?” That chilling question was put forward by a Rhode Island history professor last week in a condemnation of Israel as a “white supremacist nation” that prompted the Hamas massacre. Many donors and parents have been repulsed in recent weeks by such extremist viewpoints on our campuses over the Israel-Gaza war. For some of us, however, the hostile environment is nothing new on campuses where faculties have been purged of conservative and libertarian voices for years. Indeed, many of the same figures have previously supported radical, or even violent, efforts directed against conservatives for...