Now for the followers of Archbishop Marcel Lefebvre, it is Tradition ( Catechism of Pope Pius X-reference to invincible ignorance ) contradicting Tradition( Athanasius Creed/ Cantate Domino, Council of Florence 1441 on EENS etc)

 The Lefebvrists are confused on Vatican Council II and support the liberals who also use the same false premise. When the Lefebvrists admit that the Council can be interpreted with LG 8, LG 14, LG 16, UR 3, NA 2, GS 22 etc  being only hypothetical cases and not objective people in 2021, the hermeneutic of rupture with EENS and the Athanasius Creed  ends.

TRADITION CONTRADICTING TRADITION

Now for the followers of Archbishop Marcel Lefebvre,  it is Tradition( Catechism of Pope Pius X-reference to invincible ignorance ) contradicting Tradition( Athanasius Creed/ Cantate Domino, Council of Florence 1441 on EENS etc).They wrongly believe that the doctrinal crisis in the Church originates in the liturgy, the Novus Ordo Mass.-Lionel Andrades