Only solemn definitions of dogmatic councils are infallible, not the entire content of the teaching of the council.
The Second Vatican Council (pastoral) was the least important council in history, and previous dogmatic councils are the most important.
Bishop Schneider is right because, in fact, dogmatic councils were wrong in some matters:
Let us consider a few of the obsolete and erroneous statements made by previous Ecumenical Councils, so as not to be scandalized by the fact that a non-infallible affirmation in a conciliar Declaration (not even a Constitution or Decree) like Dignitatis Humanae, can be corrected by the Magisterium in the future.
The IV Ecumenical Council of Constantinople (870) harshly condemned Photios, Patriarch of Constantinople, in Canon 4, declaring that he was a “dangerous wolf in Christ’s flock and that he filled the entire world with a thousand riots and agitations, and that he was never a bishop, and all the churches and altars, consecrated by him, should be re-consecrated.” Yet the Byzantine Orthodox Church venerates this same Photios as “Saint Photios the Great and Ecumenical Patriarch of Constantinople,” and it celebrates his liturgical feast on February 6. With a future union of the Byzantine Greek Orthodox Church and the Holy See, Canon 4 of the IV Council of Constantinople would most certainly be abolished.
The III Ecumenical Lateran Council (1179) stipulated in Canon 26 that neither Jews, nor Muslims, could employ Christians as workers in their homes. It also said that Christians who dared to live in the homes of Jews and Muslims should be excommunicated. Can the Catholic Church today still maintain such an affirmation made by an Ecumenical Council?
The IV Lateran Council (1215) titled an entire Constitution (Constitution 4), “On the pride of the Greeks against the Latins” (De superbia Graecorum contra Latinos). Such an affirmation is surely offensive to our separated brethren.
The same Council titled another Constitution (Constitution 26) “The Jews must be distinguished from the Christians by their clothing.” And Constitution 27 states that Jews should not hold public offices.
The Ecumenical Council of Constance (1415), in its 13th session, excommunicates those priests who administer Holy Communion under both species.
Let us consider another example. The Ecumenical Council of Florence (1439) stated that the matter (materia) of priestly ordination was the delivery of the chalice, and completely omitted any mention of the laying on of hands by the bishop. It stated: “The sixth is the sacrament of the Order. The matter of this sacrament is what confers the Order. Thus, the presbyterate is conferred with the delivery of the chalice with wine and the paten with bread” (Bull of the union with the Armenians Exultate Deo, 22 November 1439).
In 1947, Pope Pius XII corrected this error by reasserting the perennial Catholic doctrine, which also corresponded to the liturgical practice of the universal Church, in both East and West. He proposes a definitive teaching, using the following expressions: “After invoking the divine light, We by Our Apostolic Authority and from certain knowledge declare” and “In order to remove all controversy and preclude any doubts of conscience”. This is the decisive statement: “We do by Our Apostolic Authority declare, and if there was ever a lawful disposition to the contrary, We now decree that at least in the future the traditio instrumentorum is not necessary for the validity of the Sacred Orders of the Diaconate, the Priesthood, and the Episcopacy” (Apostolic Constitution Sacramentum Ordinis, 30 November 1947).
Archbishop Vigano is inconsistent because (instead of calling Trump to convert to the only true Catholic faith) he publicly implements the ecumenism of the Second Vatican Council: www.lifesitenews.com/opinion/archbishop-viga…
The Church is infallible in what she teaches in faith and morals. The Supreme organ in the Church for teaching is a an Ecumenical Council approved by a Pope. Therefore all Ecumenical Councils - so far 21 - including VII, are without error = infallible, in what they teach in faith and morals.