Under Kennedy, liberalism began to become more stylistic than programmatic. After him — especially after his successor, Lyndon Johnson, a child of the New Deal, drove to enactment the Civil Rights Acts, Medicare and Medicaid — liberalism became less concerned with material well-being than with lifestyle, and cultural issues such as feminism, abortion and sexual freedom.
The bullets fired on Nov. 22, 1963, could shatter the social consensus that characterized the 1950s only because powerful new forces of an adversarial culture were about to erupt through society's crust. Foremost among these forces was the college-bound population bulge — baby boomers with their sense of entitlement and moral superiority, vanities encouraged by an intelligentsia bored by peace and prosperity and hungry for heroic politics.
Liberalism's disarray during the late 1960s, combined with Americans' recoil from liberal hectoring, catalyzed the revival of conservatism in the 1970s. As Piereson writes, the retreat of liberalism from a doctrine of American affirmation left a void that would be filled by Ronald Reagan 17 years after the assassination.
The moral of liberalism's explanation of Kennedy's murder is that there is a human instinct to reject the fact that large events can have small, squalid causes; there is an intellectual itch to discern large hidden meanings in events. And political opportunism is perennial.
George Will's email address is email@example.com.