In the chaos of the past few weeks, as adults across so many disciplines have reacted to student protesters with suspensions, zip ties, violent police raids, arrests and worse, it seems everyone has forgotten something very elemental about university students: They are raw idealists. Which means they can be inspiring, thoughtful and creatively engaged. But they can also be hellish, self-serving and terrifyingly shrewd. Trust me, I should know: From 2016 to 2018, I edited dispatches by college kids for the New York Times opinion section for a column called On Campus. College kids—they protest. A lot. Like, usually around...