The right question about religion...maybe

It's only been two days, and I feel like I've already been through way too many discussions among seculars on the "Religious Problem." I'm tired of the cartoon about "Jesusland," of arguments about whether religion just has too much influence, about how we can encourage low-income whites to vote "their interests" rather than what they consider moral values, or whether we should "encourage moderate religious voices," whatever that would entail.

I think the right way to frame the question about the role of religion in current American life is as follows:

We are clearly in the middle of one of the great periods of Christian revival in American history, the third or fourth of the "Great Awakenings" in American Protestantism. Each such period has begun with a change in the nature of worship itself, essentially a private phase, and moved onto a public phase where it engaged with the political process. These have been significant moments of progress for this country. The Second Great Awakening led in it public phase to the Abolitionist movement. What some historians consider the Third Great Awakening beginning in the 1890s led to the Social Gospel movement, settlement houses, and the beginnings of the progressive era idea of a public responsibility to ameliorate poverty.

The right question, I think, is not whether religion has an undue influence, but why it is that the current flourishing of religious faith has, for the first time ever, virtually no element of social justice? Why is its public phase so exclusively focused on issues of private and personal behavior? Is this caused by trends in the nature of religious worship itself? Is it a displacement of economic or social pressures? Will that change? What are the factors that might cause it to change.

I need some reading suggestions here. If you've read Robert Fogel's The Fourth Great Awakening & the Future of Egalitarianism you'll probably recognize that my question comes from there. Here's a chart that summarizes Fogel's basic view of the Great Awakenings, which I believe is idiosyncratic compared to that of most historians of religion (Fogel is an economic historian) Fogel helped me understand the question, but not to answer it. I'd appreciate any thoughts or advice.