A sample of devout Christian adults, ranging widely in political orientation, described what their lives (and the world) might be like had they never embraced faith. Politically conservative Christians (also scoring high on right-wing authoritarianism) tended to imagine a life deficient in impulse control, wherein unrestrained sexual and aggressive urges, addictive behaviors, and human selfishness undermined the social good. By contrast, politically liberal Christians (also scoring low on right-wing authoritarianism) imagined an empty and barren world, devoid of the emotional intensity that makes life worth living. Gender differences were also observed, but they did not interfere with the relation between political orientation and the narrative themes. In accord with theoretical writings regarding normative and humanistic ideologies, the findings suggest that, at least among American Christians, political conservatism may entail a fear of, or strong sensitivity to, the prospects of conflict and chaos, whereas political liberalism may entail an equally strong fear of, or sensitivity to, emptiness.
I've noticed the conservative fear of an anything-goes world without God, but I'd never associated a fear of an empty, meaningless world with liberals in particular.
It does seem to fit nicely into George Lakoff's model (YouTube) of the two parental metaphors that underlie conservatism and liberalism in America: that of the strict-father family and the nurturant-parent family. Take away the strict father for conservatives and we're Sodom and Gomorrah. Take away the nurturant parent for liberals and we're at a loss for what we should do.