Thing is, the nature of love demands a universe where evil is possible because free creatures made for love must have the freedom to choose not to love but to do evil in its stead. But to avoid blame, guilt, and responsibility we must then blame God, or deny Him/Her altogether, because we don’t want to look ourselves in the face—especially since, as we are told over and over these days, humans are not fundamentally flawed in their nature. Nevertheless, as we have just observed, in all the greatest evils inflicted on the human race throughout its history, it was other humans doing the accusing and condemning, then wielding the swords, guns, and machinery of destruction one upon another, expending incalculable energy and creative imagination to find new and better ways to pile evil upon evil and body upon body in the name of vengeance, justice, or plain old avarice, power-hunger, and blood-lust.
Charlemagne’s dream was certainly more noble than Constantine’s, and the new Emperor of the West seems to have had a very sincere faith in Christ and a desire to see it established and inculcated into the hearts, minds, and culture of the peoples under his sway. He promoted learning and study and extensively built churches, monasteries, convents, schools, hospitals, and castles for his garrisons. He was devout in his personal observance. But he still used fear and force to convert the reluctant or make examples of the too stubborn.