Constantine, who had Arian sympathies, was instrumental in arranging the church councils at which Arianism was crushed. for the sake of peace and stability in the Empire. Today, we would tolerate no such interference. The Arians would be left free to preach as they saw fit and the State neither would nor should have any role in picking one faith, or variety of one faith, over another. Western Civilization has endured the Arian controversy, the Iconoclastic controversy, the invasion of Islam, various non-stop arguments during the Middle Ages, the Reformation, Peasants Wars, the Thirty Years War and the Napoleonic era. Everyone is sick and tired of the intervention of various religious authorities in State matters and welcomed the development of the concept of a rigid separation between the powers, funding and oversight of the State and the panoply of religions now on the landscape. If we revert back to some kind of "Christian" nationalism, there will be civil conflict and we will have to re-learn these lessons from our ancestors.