It's hard for me to come to terms with this reality in current American and global politics, but it is stupid to pretend otherwise.
Follow the theology.
China is growing in “quiet Christianity.” The Communists make a big show about restricting Christian faith to their state worshiping distortion, but in practice they can’t.
With the abolition of communism, the Russian Orthodox church has gained a resurgence; even Putin flaunts a cross, which he wouldn’t have gotten away with in his KGB days.
But the faith in the US is getting lukewarm now. (With a few hot spots remaining, though.)