On the “Demographic math” thread, Jehu, RV, and I, despite other disagreements, are agreeing that Christian ethics make no sense without the Christian God. You can characterize progressive attitudes as “Christianity without Christ”, and the result of a society adopting these attitudes is self-destruction for various reasons. But this raises two political questions.
First, is a genuinely Christian society possible? Suppose you have a country which is both ethnically and culturally homogenous and strongly Christian with a single established Church. If the people wanted to incorporate Christian ethics into their laws and political structure, how could they do so? If they can’t, what has changed that makes this no longer possible even assuming homogeneity of faith, ethnicity, and culture?
Second, if a fully Christian society is not possible because most people are not strongly Christian, or are Christian but of different denominations, what does Christianity say about what kind of society Christians should prudently work towards? Prudence is key, I do NOT want unrealistic suggestions, I want to know how to choose from among the realistic suggestions based on Christian principles.
The answer is probably different in different countries, but one part of the answer ought to involve enforcing ethical standards that are good for both Christians and non-Christians. Christians have a standard of private charity for example, but need not to require or support a welfare state. And Christians have a duty to help their neighbors, but the duty is greater towards their kin, so it is not inconsistent for Christians to pursue policies which give relative advantage to their own ethnic group. But a line has to be drawn somewhere: it seems obviously anti-Christian to kill people who have committed no crime, and there must be other policies which a Christian could not in good conscience support even in a non-Christian society.