Not a single quote can support the position that the entire institutional Church can defect, which is the essential position of a sedevacantist. If you are a sedevacantist, you are schismatic from the Pope. For that reason, while you have Catholic sensibilities and aspects of the Catholic faith, you are not Catholic. Christ guaranteed that He would be with the Church to the end of time, that it is indefectible in its essential nature. The heirarchy is part of that essential nature, as are the Sacraments. To deny that they validly exists is to no longer be a Catholic.
patent