Turning the table on Bishop Athanasius Schneider's opinion that a heretical pope can't be deposed is easy.
Schneider said: "[N]o... universal... or... Papal Magisterium... would support the theories of the deposition of a heretical pope," but the exact same thing can be said of the bishop's opinion:
"[N]o... universal... or... Papal Magisterium... would support the theories of" not being able to depose "a heretical pope."
Schneider's opinion has next to zero authority or merit when standing next to the teaching of Doctor of the Church St. Francis de Sales:
[T]he Pope... when he is explicitly a heretic... falls ipso facto from his dignity and out of the Church either deprive him, or, as some say, declare him deprived, of his Apostolic See."
(The Catholic Controversy by St. Francis de Sales, Pages 305-306)
Schneider, also, apparently is implying sit on you hands and do nothing when he says:
"There is no historical case of a pope losing the papacy during his term of office due to heresy."
So is the bishop saying during the time of the Arian heresy because there was no historical case of the Catholic Church by universal and Papal Magisterium teaching explicitly the dogma that Jesus is God that the last faithful Catholics should have sat on their hands and done nothing.
Sorry, but St. Athanasius and mostly the laity didn't follow your advise. In fact, this historical case goes against your do nothing policy.
They demanded that the Church correct the Arian heretics, universally and papally proclaimed the new explicit dogma that Jesus is God and depose those bishops who refused to recant the Arian heresy.
In the past, when popes were in error it was a one time and minor hersey. Today as never before in the history of the papacy we have repeated errors and heresies from a pope.
The situation today between Francis and the heretical popes of the past is a difference between kind not degree.
In the past, the heretical popes were a matter of degree like minors degrees of burns that don't cause death.
Today, with Francis as compared to the past heretical popes there is a difference of kind such as the minor ailment of a common cold versus a ailment like deadly cancer.
We have Pope Francis by means of Apostolic Exhortations, Encyclicals, AAS, the Catechism and papal statements teaching errors and heresies such as God wills "a diversity of religions," adulterers can receive Communion, the death penalty is "inadmissible" and the error list goes on.
Sorry, but like St. Athanasius we demand that the Church correct the Francis heretics, universally and papally proclaimed the new explicit dogma of deposing a heretical pope and depose those bishops who refuse to recant the Francis heresies.
Pray an Our Father now for the restoration of the Church.
St. Athanasius, to whom it was objected, "You have the bishops against you," answered with Faith: "that proves that they are all against the Church. If the world goes against the truth, then Athanasius goes against the world." Athanasius contra mundum
St. Alphonsus Liguori, (1696-1787)
Doctor of the Church
"If ever a Pope, as a private person, should fall into heresy, he would at once fall from the Pontificate." If, however, God were to permit a pope to become a notoriously and contumacious heretic, he would by such fact cease to be pope, and the apostolic chair would be vacant."
