The rhetoric against Pope Francis has been getting progressively worse. I thought things reached their peak when he was accused of formal heresy by the Open Letter. But then they went on to accuse him of apostasy, which then seemed like the height, and next sacrilege and idolatry. What could be next? Will they accuse him of being in league with the devil? They already make that accusation in the insanely popular book “Infiltration” (and I do mean “insane”). Taylor Marshall in Infiltration: “a pope for Satan on the Roman Chair of Saint Peter” and “a satanic revolution with the pope as puppet.” [KL* 120]
And though they blame Pope Francis, it is easily provable that he is not the cause of this rebellion. For they also accuse multiple other Popes of grave errors, and they cast aspersions on the recent Pope-Saints, even John Paul II. Then, having placed themselves above the Papacy itself, they judge and condemn the Second Vatican Council and ignore or contradict the teaching of the First Vatican Council.
Then, prior to Pope Francis, many conservative Catholic leaders were teaching heresy, devising their own version of Catholicism, which was ever more distant from truth. But the leaders of this subculture refused to criticize any of their own. I wrote many posts arguing against these errors. But their followers had no concern for whether they were being taught Catholic truth, as long as the teacher of error had the right set of conservative opinions (or popular errors). The foundation of the schism was laid long before Pope Francis was elected.
The election of a liberal but orthodox Roman Pontiff simply brought this rebellion against Christ to light, and catalyzed it. But even after all of these severe accusations against Francis, which certainly imply that the Pope has lost his validity (if such claim were, or could even be, true), they continue to claim to be Roman Catholic, and continue to go to Mass, as if nothing had changed. What will cause these schismatics and heretics to walk away from the Church which they now hate? What will cause them to admit they are no longer a part of this Church led by Pope Francis?
I consider that Pope Francis might teach that non-Christian believers and non-believers can be saved without converting. In my opinion, this conclusion is necessitated by past magisterial teaching, as I explain in Forgiveness and Salvation for Everyone. The papal accusers seem to have coalesced around the erroneous claim that only baptized Christians can be saved, and salvation outside of formal baptism is possible, but rare, or impossible. The latter position is the heresy of Feeneyism; the former is mitigated Feeneyism, and at least proximate to heresy.
The other possibility, more likely I think, is that Pope Francis will ordain women deacons. There will be ever more ordained women in the parishes and diocese, forcing the conservative schismatics to walk out of the churches, literally and figuratively. When this “Walk Out” occurs, they will finally admit that they are not in communion with Pope Francis.
And I really believe it is best for the Church. These popular Catholic leaders are causing grave harm to souls. Not every follower of theirs is so enthusiastic about accusing Pope Francis of grave sin. Some are on the fence, and they may be led into grave failures of faith by the conservative Catholic subculture, if this situation continues without a resolution.
I don’t know what the numbers are. In a Church of 1.3 billion persons, there might be millions at least who have already decided to reject submission to Pope Francis. They are already schismatics. But they still attend Catholic churches.
Something similar happened with Arianism, long ago. Many Bishops and priests fell into this grave heresy, with much of their flocks. They did not form a separate “church”. They pretended to be faithful Christians in the one Church. Could the situation continue without a “walk out”? Perhaps. But this progression toward ever greater rebellion has to lead somewhere. And it doesn’t seem to be leading to repentance.
When the Walk Out occurs, some parishes will collapse. Others will fall entirely into schism and heresy, rejecting the Pope openly. Not many Bishops will fall away. We can already see that the body of Bishops supports the Roman Pontiff, by the grace of God (of course).
But then the schismatics will be in much the same position as the SSPX and other sedevacantists. How can they return to the Church, having rejected a past Pope? No future Council is going to reject Vatican II. No future Pope is going to reject Pope Francis, not since the First Vatican Council defined that every Pope has a never-failing faith. They have no way to return, except to repent and admit that Pope Francis never committed apostasy, heresy, or schism; never committed idolatry, sacrilege, or blasphemy. (The latter accusation is probably next in this progression.)
“Disobedience to the Church and rejection of Church teaching amounts to a rejection of Christ himself.” 
To the faithful, I say: do not delve into the details of the accusations against Pope Francis. Simply believe that the grace of God protects the Church, making Her indefectible. And this indefectibility certainly applies also to the head of the Church, the Roman Pontiff, and the body of Bishops. Believe based on faith, and do not fall into the prideful error of judging Popes or Councils, for they speak with the authority of Christ and the assistance of the Holy Spirit. The Church is the bride of Christ, and She is the body of Christ with Him as Her head, and the Spirit as Her soul. To say that the Church is infiltrated by Satan, at the highest levels, is to reject Christ and the Holy Spirit.
 Dr. Janet E. Smith in the Foreword to Catholic Sexual Morality by Robert L. Fastiggi, Ph.D.
* Kindle location, a number system for location of text in Kindle formatted electronic books.