The USA does no have the right because it is unconstitutional.

America was established with the idea of separation of church and state clearly entrenched in the First Amendment to the U.S. Constitution. It is based on the First Amendment to the U.S. Constitution which declares that “Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof.”

Thomas Jefferson promoted the idea of such separation and in 1947, U.S. Supreme Court Justice Hugo Black quoted Jefferson in his majority opinion for Everson v. Board of Education declaring that “the clause against establishment of religion by law was intended to erect ‘a wall of separation between Church and State.'”