Are you a sedevacantist?
No. Msgr. Federico Ocariz, representing the Vatican Congregation for the Doctrine, recently published an essay stating that the Vatican II council is not infallible. Here is a Catholic World Report summary of that essay:
What do you think of the Vatican II contradiction of previous infallible doctrine concerning Islam?
From the article: “Instead, he says, the teachings of the Magisterium must be received as teachings given by pastors who are divinely guided.
This does not mean that the pastors are always infallible, but they are divinely guided even when they are not teaching infallibly, and so their teachings cannot be dismissed as merely temporary teachings or official opinions.”
Either you accept the Authority of the Church...or not.
By the way, is it possible that you are misunderstanding exactly what was stated? Why don’t you simply, as the author, Jimmy Akin, has stated...pray for the success of the Church in trying to heal any division/misunderstanding?
Yet every other time, you guys claim that all these people that hang out at the vatican are not the voice of the pope...
So when your pope corrects your catechism, then, we can take it as your official church teaching...