Michael Harrington, author of The Other America which impacted Kennedy and LBJ's war on poverty and founder of DSA, also wrote a work on religion called The Politics at God's Funeral which touches on the collapse of a liberal framework where questions of meaning and ultimacy could be worked out. A number of the ideas I've been working with have come from this 21 year old book but it seems more pertinent today than when it was written.
Harrington writes "The political and social God of the western tradition is dying. An atheism of fools could rejoice in the emptiness of the heavens he leaves behind; a theism of fools could keep on singing the old hymns. The real issue is whether the horizon is being wiped away. No politics can answer that question-and only a politics of all those concerned with the survival of the spirit, whether it is said to be holy or only human, can work to create the social structures in which people are more likely to answer it for themselves"