Below are some of his heresies and the dogmatic definitions that they are in clear violation of.
Antipope Pius XII, Mystici Corporis Christi, #96: "And first of all let us imitate the breadth of His love. For the Church, the Bride of Christ, is one; and yet so vast is the love of the divine Spouse that it embraces in His Bride the whole human race without exception. Our Savior shed His Blood precisely in order that He might reconcile men to God through the Cross, and might constrain them to unite in one body, however widely they may differ in nationality and race. True love of the Church, therefore, requires not only that we should be mutually solicitous one for another as members and sharing in their suffering but likewise that we should recognize in other men, although they are not yet joined to us in the body of the Church, our brothers in Christ according to the flesh, called, together with us, to the same eternal salvation."
WHOA!!! Okay did everyone catch that? Are you still going to tell me that the Apostasy started with Vatican II? Malarkey!
Antipope Pius XII stated that the Catholic Church embraces the whole human race without exception. Well this statement is actually ambiguous and not explicitly heretical on its own, since it can be understood to mean that the Church embraces every nation. That is quite true, the Church does, though not every individual will come to enjoy this embrace, many being excluded by their own free will, given over to sin.
But Antipope Pius XII provides us the very context we need in order to know his heretical designs in making this statement when he says: "we should recognize in other men, although they are not yet joined to us in the body of the Church, our brothers in Christ,"
This is heresy in direct opposition to the following dogmatic decree:
Pope Pius IX, Vatican Council, Session 3, Chapter 3, #9-10, 1870, ex cathedra: "Since, then, without faith it is impossible to please God and reach the fellowship of his sons and daughters, it follows that no one can ever achieve justification without it, neither can anyone attain eternal life unless he or she perseveres in it to the end. So that we could fulfill our duty of embracing the true faith and of persevering unwaveringly in it, God, through his only begotten Son, founded the Church, and he endowed his institution with clear notes to the end that she might be recognized by all as the guardian and teacher of the revealed word."
Quite simply, if a person is not the son or daughter of God, it is because he does not have the true Faith. As such he CANNOT be called a brother in Christ, who has not the true Faith. Plain and simple.
Heretics might argue that his insertion of the words "according to the flesh" might render his teaching not heretical. That line of argument, however, is completely contrary to the revealed doctrine about the sacrament of Baptism, which regenerates and redeems a man, both soul AND BODY.
Pope Paul III, Council of Trent, Session 5, Decree Concerning Original Sin, #1, ex cathedra: "If any one does not confess that the first man, Adam, when he had transgressed the commandment of God in Paradise, immediately lost the holiness and justice wherein he had been constituted; and that he incurred, through the offence of that prevarication, the wrath and indignation of God, and consequently death, with which God had previously threatened him, and, together with death, captivity under his power who thenceforth had the empire of death, that is to say, the devil, and that the entire Adam, through that offence of prevarication, was changed, IN BODY and soul, for the worse; let him be anathema."
Therefore, infidels cannot be called "brothers in Christ", neither spiritually, nor according to the flesh.
Antipope Pius XII, Mystici Corporis Christi, #103: "As you know, Venerable Brethren, from the very beginning of Our Pontificate, We have committed to the protection and guidance of heaven those who do not belong to the visible Body of the Catholic Church, solemnly declaring that after the example of the Good Shepherd We desire nothing more ardently than that they may have life and have it more abundantly. Imploring the prayers of the whole Church We wish to repeat this solemn declaration in this Encyclical Letter in which We have proclaimed the praises of the 'great and glorious Body of Christ' and from a heart overflowing with love We ask each and every one of them to correspond to the interior movements of grace, and to seek to withdraw from that state in which they cannot be sure of their salvation."
It is not merely a state in which thy cannot be sure of salvation, it is a state in which they are INCAPABLE of being saved, as has been repeated throughout Church history in such infallible and dogmatic bulls as Unam Sanctam of Pope Boniface VIII and Cantate Domino of Pope Eugene IV.
Pope Boniface VIII, Unam Sanctam, 1302, ex cathedra: "Urged by faith, we are obliged to believe and to maintain that the Church is one, holy, catholic, and also apostolic. We believe in her firmly and we confess with simplicity that outside of her there is neither salvation nor the remission of sins,"
Pope Eugene IV, Council of Florence, Cantate Domino, 1439, ex cathedra: "Whoever wills to be saved, before all things it is necessary that he holds the catholic faith. Unless a person keeps this faith whole and undefiled, without doubt he shall perish eternally. The Catholic faith is this... [Athanasian Creed] ...This is the Catholic faith. Unless a person believes it faithfully and firmly, he cannot be saved."It doesn't get any more clear and explicit than that. Believe the Catholic Faith FAITHFULLY and FIRMLY (which you cannot do if you have never heard of it or reject some portion of it, OBVIOUSLY), or you will go to hell. Period.
Antipope Pius XII continues: "For even though by an unconscious desire and longing they have a certain relationship with the Mystical Body of the Redeemer, they still remain deprived of those many heavenly gifts and helps which can only be enjoyed in the Catholic Church. Therefore may they enter into Catholic unity and, joined with Us in the one, organic Body of Jesus Christ, may they together with us run on to the one Head in the Society of glorious love. Persevering in prayer to the Spirit of love and truth, We wait for them with open and outstretched arms to come not to a stranger's house, but to their own, their father's home."
Wrong. They have not God for a father but the devil.
St. John 8:43-45: "Why do you not know my speech? Because you cannot hear my word. You are of your father the devil, and the desires of your father you will do. He was a murderer from the beginning, and he stood not in the truth; because truth is not in him. When he speaketh a lie, he speaketh of his own: for he is a liar, and the father thereof. But if I say the truth, you believe me not. "
Remember, it is a dogma that none are able to reach the fellowship of the sons and daughters of God without the Faith. This is attested to also by other authorities in the Church:
St. Cyprian of Carthage, Treatise 1: "The spouse of Christ cannot be adulterous; she is uncorrupted and pure. She knows one home; she guards with chaste modesty the sanctity of one couch. She keeps us for God. She appoints the sons whom she has born for the kingdom. Whoever is separated from the Church and is joined to an adulteress, is separated from the promises of the Church; nor can he who forsakes the Church of Christ attain to the rewards of Christ. He is a stranger; he is profane; he is an enemy. He can no longer have God for his Father, who has not the Church for his mother."
Not only that but did you notice that such people are said by the antipope to have an UNCONSCIOUS desire and longing? Ridiculous! That means that any pagan or idolater who is "sincere" in his idolatry could have an unconscious desire to be united to Christ and doesn't have to know Christ at all, but we can still call him a brother in Christ!
To the heretic Freemason antipope Pius XII, anathema!
What Must You Do To Get to Heaven?