There is a quality to Ross Douthat's writings that is remarkably consistent: He is almost always half-right. His most recent essay at the New York Times details the decline of the Episcopal Church and asks if liberal Christianity is dying. He also points out that many of the more robust forms of conservative Christianity "have often been politically conservative but theologically shallow, preaching a gospel of health and wealth and not the full New Testament message."
This is better than the usual conservative Christian commentariat has to offer but even here, you can discern the mistake in Douthat's worldview. The gospel does not proclaim a message but a person. The left and the right may argue about the means and methods for engaging the world, but Christianity is not, foremost, about engaging the world. Douthat may be more nuanced than certain neo-con Christians, but he misses the ways that he, too, participates in the reduction of religion to ethics and utility. In this essay, for example, he writes: