In the last 50 years, the Christian churches have undergone what “American Grace” describes as a shock and two aftershocks. The initial earthquake was the cultural revolution of the 1960s, which undercut religious authority as it did all authority, while dealing a particular blow to Christian sexual ethics. The first aftershock was the rise of religious conservatism, and particularly evangelical faith, as a backlash against the cultural revolution’s excesses. But now we’re living through the second aftershock, a backlash to that backlash — a revolt against the association between Christian faith and conservative politics, Putnam and Campbell argue, in which millions of Americans (younger Americans, especially) may be abandoning organized Christianity altogether…

Thanks in part to this bunker mentality, American Christianity has become what Hunter calls a “weak culture” — one that mobilizes but doesn’t convert, alienates rather than seduces, and looks backward toward a lost past instead of forward to a vibrant future. In spite of their numerical strength and reserves of social capital, he argues, the Christian churches are mainly influential only in the “peripheral areas” of our common life. In the commanding heights of culture, Christianity punches way below its weight.