I am their leader, I had to follow them.

—French radical Ledru-Rollin, 1848

A little over a decade ago I published an article in these pages titled “A Tale of Two Reactions” (May 14, 1998). It struck me then that American society was changing in ways conservative and liberal commentators just hadn’t noticed. Conservatives were too busy harping on the cultural revolution of the Sixties, liberals on the Reagan revolution’s “culture of greed,” and all they could agree on was that America was beyond repair.

The American public, meanwhile, was having no trouble accepting both revolutions and reconciling them in everyday life. This made sense, given that they were inspired by the same political principle: radical individualism. During the Clinton years the country edged left on issues of private autonomy (sex, divorce, casual drug use) while continuing to move right on economic autonomy (individual initiative, free markets, deregulation). As I wrote then, Americans saw “no contradiction in holding down day jobs in the unfettered global marketplace…and spending weekends immersed in a moral and cultural universe shaped by the Sixties.” Democrats were day-trading, Republicans were divorcing. We were all individualists now.

What happened? People who remember the article sometimes ask me this, and I understand why. George W. Bush, who ran on a platform of “compassionate conservatism,” seemed attuned to the recent social changes. The President Bush who emerged after September 11 took his party and the country back to the divisive politics of earlier decades, giving us seven years of ideological recrimination. By the time of the last presidential campaign, millions were transfixed not by the wisdom or folly of Barack Obama’s policy agenda, but by absurd rumors about his birth certificate and his “socialism.” Now he has been elected president by a healthy majority and is grappling with a wounded economy and two foreign wars he inherited—and what are we talking about? A makeshift Tea Party movement whose activists rage against “government” and “the media,” while the hotheads of talk radio and cable news declare that the conservative counterrevolution has begun.

It hasn’t. We know that the country is divided today, because people say it is divided. In politics, thinking makes it so. Just as obviously, though, the angry demonstrations and organizing campaigns have nothing to do with the archaic right–left battles that dragged on from the Sixties to the Nineties. The populist insurgency is being choreographed as an upsurge from below against just about anyone thought to be above, Democrats and Republicans alike. It was galvanized by three things: a financial collapse that robbed millions of their homes, jobs, and savings; the Obama administration’s decision to pursue health care reform despite the crisis; and personal animosity toward the President himself (racially tinged…