Then since the French Revolution, in one Catholic country after another, Satan has succeeded in setting up a native government hostile to the Mass and to the rule of Christ the King. There are still two exceptions—Poland and Ireland...those two countries, so remarkable for their traditional loyalty to God the Father and Our Lord Jesus Christ, whom He has sent, are weakening in their grasp of order.
While other countries that had succumbed to the wiles of Satan and his emissaries in the past, have begun to react and are returning to Our Lord and His Church, those two countries, in the wake of so many others in the past, have declared themselves indifferent to Him...Thus the Polish State and the Irish State, to put the matter succinctly, declare themselves, as such, indifferent to the struggle between the True Supernatural Messias and the Natural Messias.
“Since the Catholic religion is the only true religion,” writes Pope Leo XIII, “to put the other religions on the same level with it is to treat it with the gravest injustice and offer it the worst form of insult.”(13) This phrase of Pope Leo XIII occurs in an Encyclical Letter dealing with Satan's efforts, through secret societies, to undermine the Kingship of Christ in the world. It is the considered judgement of the great Pontiff on what has been proclaimed, in country after country, to be one of the marks of modern "progress.”
Pope Pius XI insists upon the same point in the Letter Quas Primus (1925), On the Kingship of Christ. There the Sovereign Pontiff declares that the naturalistic spirit gradually came to infect society and thus "by degrees the religion of Christ was put on the same level as false religions and placed ignominiously in the same category with them.” The insult to Christ the King involved in that attitude should make every Catholic resolve to undo it. That it does not is proof of how low we have fallen and of how sadly we have been influenced by our environment. We shall have a clearer understanding of these things at the “last judgement when Christ, who has been cast out of public life, neglected and ignored, will severely avenge such insults.”(14)
(13) Encyclical Letter, Humanum genus, On Freemasonry.
(14) Encyclical Letter, Quas Primas, On the Kingship of Christ.
Rev. Denis Fahey, C.S.Sp., D.D., D.Ph., B.A.; The Mystical Body of Christ And The Reorganization of Society (Ireland: The Forum Press, 1945), 9. Imprimatur Jan. 26, 1943.
https://archive.org/details/DenisFaheyTheMysticalBodyOfChristAndTheReorganizationOfSociety_201603/page/n0