43 This is precisely what is happening today in the sight of the whole world and in the broad light of modern civilization. Especially is this the case in some countries where "the powers of darkness" seem to have made their headquarters. This domineering tyranny has suppressed all the rights of the Church's children. These rulers' hearts have been closed to all feelings of generosity, courtesy, and faith which their ancestors, who gloried in the name of Christians, manifested for so long a time. It is obvious that everything quickly lapses back into the ancient barbarism of license whenever God and the Church are hated. It would be more correct to say that everything falls under that most cruel yoke from which only the family of Christ and the education it introduced has freed us. Borromeo expressed the same thought in the following words: "It is a certain, well- established fact that no other crime so seriously offends God and provokes His greatest wrath as the vice of heresy. Nothing contributes more to the down fall of provinces and kingdoms than this frightful pest." Although the enemies of the Church completely disagree among themselves in thought and action (which is a sure indication of error), they are nevertheless united in their obstinate attacks against truth and justice. Since the Church is the guardian and defender of both these virtues, they close their ranks in a unified attack against her. Of course, they loudly proclaim (as is the custom) their impartiality and firmly maintain they are only promoting the cause of peace. In reality, however, their soft words and avowed intentions are only the traps they are laying, thus adding insult to injury, treason to violence. From this it should be evident that a new kind of warfare is now being waged against Christianity. Without a doubt it is far more dangerous than those former conflicts which crowned Borromeo with such glory.
Source: Editae Saepe (Vatican.va)