A “Christian Nation” is absolutely heretical. Christ did not come into this world to become a modifier. Look what happened to the Holy Roman Empire.
Jesus said you must hate your mother and father and love your enemies. This is not obtuse provocation, but it’s spiritual deployment of true identity, which no longer resides in skin color combination, ideology, genealogy, name, people, places and things, but in the brotherhood and sisterhood of all humankind, which is ruled by love at any cost.