What's disheartening to me, a life-long agnostic, is that this change doesn't seem to correspond to an increase in rational, scientific materialism. Indeed, it seems like science is on the outs as well with increasingly common denial of basic scientific facts when they conflict with ideology. Instead, this seems to be a change of aesthetics - trading one set of pseudoscientific beliefs (Christianity) for another (new age mysticism, astrology, goop.com).