In spite of all this ... you and so many still believe the chair is not empty, empty of a True Pope.
Sedeprivationism is a term coined by British traditionalist Catholic theologian William J. Morgan;
Material, Pope or other novel terms created to explain an agenda just because it makes you all feel smarter, I suppose is the reason. Not sure, just my opinion why all these terms have been created.
At least the term "sedevacantist" in spite of roscoe, is a Catholic term, the Vatican even issued a Vatican stamp proclaiming "sedevacantist". Look it up! Issued way before Vatican II.
It doesn't mean the Papacy has failed, it means just the opposite. People like Meg believes the Papacy has failed or those who still believe that Francis can be a pope of both truth and error, just because!
However, they can't find anything Truthful anymore that Francis stands for, so I guess lately they believe he is just a pope of error. Truth flew out the window with the Holy Ghost when John XXIII opened the windows.