Unfortunately, it’s hard to disagree with his assessment:
Obviously the world of religious conservatism also includes lots of people who are invested in actual Christian orthodoxy, as opposed to the Osteen-Shori vision of God as a really powerful life coach. But the theological continuum that encompasses both Schori-style liberal Protestants and Oprah-watching, The Secret-reading spiritual seekers – call it moralistic therapeutic deism, call it gnosticism, call it the American heresy – extends way deeper into the “religious right” than a lot of people think.