Farrell believes that the the wonders of traditional Western culture were founded on common Christian roots, and they were, but a few people like myself believe that the wonders of traditional Western culture were more deeply founded on common ethnic roots which religion and the church helped bond together. Christian success in bonding of people together began to change as the people changed, since bonding works best in ethnically homogeneous cultures.
Real human nature is, among other conservative things, kin and ethnic centered and altruism grew from that source long before Christianity, because being kin and ethnic centered was successful in survival and reproduction. Ironically, or tragically, the Christian promotion of universal altruism helped to break down the common Christian roots of ethnically homogeneous cultures.
Certainly religion is vital in deeply bonding people together, but ethnically homogeneous cultures are even more vital, which is why the evolutionary science of sociobiology needs to be brought into conservative and liberal-left religious and cultural philosophy.
If real kin and ethnic-centered human nature is allowed to be what it is, it naturally leads to regionalism, localism, ethnostates, and finally, if we are wise, an ethnopluralism of ethnostates. In the U. S. this could be accomplished by adapting the U.S. constitutional separation of powers and states to an ethnopluralism of ethnostates.
As to religion, I believe that the origin of sacredness and deep religion needs to come from the process of numberless material worlds always evolving toward ascending levels of supermaterial Godhood, even though natural selection and evolution has random elements and instances of stagnation and retreat. Deep religion comes from seeking to understand how life can be synchronized with this sacred process, and how we can best help it along. The goal of materially evolving to Godhood need not deprive us of either science, religion, or politics.