The third of the Klan principles is that Protestantism must be supreme; that Rome shall not rule America. The Klansman believes this is not merely because he is a Protestant, nor even because the Colonies that are now our nation were settled for the purpose of wresting America from the control of Rome and establishing a land free of conscience.
I don't think this should be overlooked. While he's pointing out these notes in passing to bridge to his main point, we can see this reflected in radical conservatism today. "settled for the purpose of ...establishing a land free of conscience." This is a belief that is overtly present through the actions and values of radical conservatives in the country for CENTURIES, at this point. Even in those that are not in the KKK.