Well here’s a couple that agree.
From the Catechism of St. Pius X:
While this catechism is overall a useful tool, this is not an infallible decree.
From St. Thomas’ Summa, Pt 3 Q69, A4
“It does not suffice to believe. He who believes and is not yet baptized, but is only a Catechumen, has not yet fully acquired salvation.” St. Thomas Aquinas
“Without the Sacrament of Baptism, no one is ever justified. If anyone says that Baptism is optional, that is, not necessary for salvation: let him be anathema.” Council of Trent
“No one, even if he pour out his blood for the name of Christ, can be saved unless he remain within the bosom and unity of the Catholic Church.” Council of Florence, Pope Eugene IV
Pope Eugene IV, The Council of Florence, “Exultate Deo,” Nov.
22, 1439: “Holy baptism, which is the gateway to the spiritual life, holds the first place among all the sacraments; through it we are made members of Christ and of the body of
the Church. And since death entered the universe through the first man, ‘unless we are born again of water and the Spirit, we cannot,’ as the Truth says, ‘enter into the kingdom of
heaven’ [John 3:5]. The matter of this sacrament is real and natural water.”
Pope Paul III, The Council of Trent, Can. 2 on the Sacrament of Baptism, Sess. 7, 1547: “If anyone shall say that real and natural water is not necessary for baptism, and on that account those words of Our Lord Jesus Christ: ‘Unless a man be born again of water and the Holy Spirit’ [John 3:5], are distorted into some sort of metaphor: let him be anathema.”
Pope St. Zosimus, The Council of Carthage XVI, on Original Sin and Grace: “For when the Lord says: ‘Unless a man be born again of water and the Holy Ghost, he shall not enter into the kingdom of God’ [John 3:5], what Catholic will doubt that he will be a partner of the devil who has not deserved to be a coheir of Christ. For he who lacks the right part will
without doubt run into the left.”
From the sixth book of St. Alphonsus’s Moral Theology:
St. Alphonsus Liguori, Sermons (c. +1760): “How many are born among the pagans, among the Jews, among the Mohometans and heretics,
and all are
lost.”
St. Alphonsus: “If you are ignorant of the truths of the faith, you are
obliged to
learn them. Every Christian is bound to learn the Creed, the Our Father, and the
Hail Mary under pain of mortal sin. Many have no idea of the Most Holy
Trinity, the Incarnation, mortal sin, Judgment, Paradise, Hell, or Eternity; and
this deplorable ignorance damns them.”
St. Alphonsus, Preparation For Death, (c. +1760): “How thankful we ought to be
to Jesus Christ for the
gift of faith! What would have become of us if we had
been born in Asia, Africa, America, or in the midst of heretics and schismatics?
He who does not believe is lost. This, then, was the first and
greatest grace
bestowed on us:
our calling to the true faith. O Savior of the world, what would become of us if Thou hadst not enlightened us? We would have been like our
fathers of old, who adored animals and blocks of stone and wood: and thus we
would have all perished.”
From Blessed Pope Pius IX:
You need to quote the encyclical in it’s entirety:
Pope Pius IX, Quanto Conficiamur Moerore: “
And here, beloved Sons and Venerable
Brothers, We should mention again and censure a very grave error in which some
Catholics are unhappily engaged, who believe that men living in error, and
separated from the true faith and from Catholic unity, can attain eternal life.
Indeed, this is certainly quite contrary to Catholic teaching. It is known to us and to you that they who labor in invincible ignorance of our most holy religion AND WHO
ZEALOUSLY KEEPING THE NATURAL LAW AND ITS PRECEPTS ENGRAVED
IN THE HEARTS OF ALL BY GOD, AND BEING READY TO OBEY GOD, LIVE
AN HONEST AND UPRIGHT LIFE, can, by the OPERATING POWER OF DIVINE
LIGHT AND GRACE, attain eternal life since God…will by no means suffer anyone to
be punished with eternal torment who has not the guilt of deliberate sin.”
Pope Pius IX does not say anywhere that the invincibly ignorant can be saved where they are. Rather, he is reiterating that the ignorant, if they cooperate with God’s grace, keep the natural law and respond to God’s call, they can by God’s “operating power of divine light and grace” [being enlightened by the truth of the Gospel] attain eternal life, since God will certainly bring all of his elect to the knowledge of the truth and into the Church by baptism.
Even Archbishop Lefebre recognized this:
He is not the magesterium.