Every human enterprise — a family, a company, a country — runs on some shared sense of purpose. When that purpose is obvious, no one needs to talk about it. When it isn’t, people start holding meetings. Anyone who has endured a corporate “mission‑statement rollout” knows the dread of that moment: the sudden realization that the organization has forgotten what it’s for and is now trying to remember by committee. A country is, in the end, a very large group of people attempting to move in roughly the same direction. It needs a reason to do so that’s bigger than paperwork or habit. When that reason is strong, disagreements behave themselves; they stay in the background, like the hum of a refrigerator. When the reason fades, the hum becomes the whole soundtrack. The result isn’t necessarily hatred — more often it’s a kind of national restlessness, a search for meaning that leaves people unusually susceptible to cynicism, tribalism, or the comforting simplicity of blaming one another. F...