What do you mean by Protestants in America?

Christianity includes three traditions-Catholicism, Orthodox Christianity and Protestantism-and a small tradition called Maronites, among which Reformed Christianity is also called Christianity, Protestantism and Jesuits, Catholicism is also called Roman Catholic Church and Old Church, Orthodox Christianity is also called Greek Orthodox Church, and Maronites is also called Nestorianism, Nestorianism, Yearick and so on.