MHFM: Adherents of the Cassiciacum Thesis are NOT sedevacantists, despite their claims to the contrary. The main proponents of this false position are Donald Sanborn and his heretical group.
They actually regard the Vatican II Sect to be the true Church and hold all members of the Novus Ordo (who have not been declared heretics) to be Catholics. In fact, they make many of the same arguments that anti-sedevacantists make. They also deny EENS, mock John 3:5, and support NFP. They are not true Catholics.
Defender of Faith
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