The Catechism of Pope Pius X is Feeneyite.It supports Fr. Leonard Feeney of Boston and contradicts Pope Pius XII and the Archbishop of Boston. See numbers 24Q and27Q.1
The confusion today comes with 29Q.2 It can be interpreted as being visible or invisible.
If 29Q refers to visible cases cases for you, people personally known who are saved in invincible ignorance and without the baptism of water in the Catholic Church, then 29Q contradicts 24Q and 27Q.
This I call the Cushingite interpretation of the Catechism of Pope Pius X.For Cushingites there are known exceptions to the Feeneyite interpretation of the dogma extra ecclesiam nulla salus.The dogma EENS is no more like it was for the 16th century missionaries. It is a rupture with St. Robert Bellamine, St. Francis of Assisi and St. Francis Xavier.
For me 29Q refers to an invisible case.So it is not an exception to 24Q and 27Q.So the Catechism of Pope Pius X is Feeneyite and not Cushingite for me.
All need to be living member of the Church to avoid the fires of Hell and no one can be saved outside the Church.
It is with this rational reasoning that I interpret Vatican Council II as not being a rupture with the Catechism of Pope Pius X. It does not contradict the dogma extra ecclesiam nulla salus as it was known to the 16th century missionaries.
Vatican Council II also does not contradict the Syllabus of Errors and the rest of Tradition.
For the traditionalists and the Vatican Curia, Vatican Council II is a rupture with Tradition since Lumen Gentium 16( invincible ignorance) refers to a visible case.The error emerges with their inference.
For me the Catholic Church teaches that all Hindus, Buddhists, Jews, Muslims, Orthodox Christians, Protestants,atheists and other non Catholics,need to be incorporated into the Church as members for salvation.
24 Q. To be saved, is it enough to be any sort of member of the Catholic Church?
A. No, to be saved it is not enough to be any sort of member of the Catholic Church; it is necessary to be a living member.
27 Q. Can one be saved outside the Catholic, Apostolic and Roman Church?
A. No, no one can be saved outside the Catholic, Apostolic Roman Church, just as no one could be saved from the flood outside the Ark of Noah, which was a figure of the Church
29 Q. But if a man through no fault of his own is outside the Church, can he be saved?
A. If he is outside the Church through no fault of his, that is, if he is in good faith, and if he has received Baptism, or at least has the implicit desire of Baptism; and if, moreover, he sincerely seeks the truth and does God's will as best he can such a man is indeed separated from the body of the Church, but is united to the soul of the Church and consequently is on the way of salvation