Gerhard Cardinal Mueller has rightly raised the question of the duties of disobedience in a Church in which orthodoxy is subverted from above.*
The longer the Church is run by PF and/or by Bergoglians, the more acute this problem will become.
In the Church of England, the oath of Canonical Obedience sworn by clergy at their ordination included the limiting phrase " ... in all things lawful and honest ... ".
I presume that such limitation must be implicit in all such oaths.
Perhaps traddy-sympathetic scholars competent in Canon Law should be excavating from canonical sources, and from the judgements of the authentic and classical writers on Moral Theology, a broadly and deeply based praxis concerning this question.
Who knows how long we may be needing it!
*A statement printed on Lifesitenews on Thursday December 11, concluding
"[a priest] is not bound by Divine Law to administer Holy Communion to a non-Catholic, and, in any case, he certainly cannot be bound by any episcopal order - purely according to Church Law - to commit an act which violates the sacramentality of the Church. A bishop who imposes penalties against priests who rightly disobey him in this case thereby abuses his apostolic authority in a grave manner ..."