Whenever a politician cites “Judeo-Christian values,” I find it’s generally followed by something unsettling.

Last month brought two flagrant instances. In both cases, Republican officials introduced state laws that formalize precepts of the Christian nationalist movement — in the words of the National Association of Christian Lawmakers (A.D. 2019), “doing everything we can to restore the Judeo-Christian foundation of our nation.”

On June 19, Gov. Jeff Landry of Louisiana signed…