In his follow-up letter to his recent Motu Proprio, Francis established that Vatican II was "solemnly" declared by the bishops and was guided by the Holy Ghost, as follows:
via Vatican.va:
I'm having trouble, in light of this pronouncement, plus the clear abrogation of the TLM over time, how we can continue to state we are "one in faith" with a pope who declares Vatican II was led by the Holy Spirit and solemnly declared in union with the bishops? It seems to me that resisting this Pope is no longer an option when he so clearly established his position.
We are not "of one faith" and have not been for quite some time -- but even without any statements that V2 was led by the Third Person of the Trinity. (The latter is at least a reference to Catholicism.) Little time does PF spend on proclaiming any version of the faith; it seems he has substituted a third religion for what were two:
1. Traditional Catholicism, including its unchanged dogma
2. The carelessly and casually invented Catholicism post-1964, informally coalescing into a modernist movement in alliance with the modernism ("progressivism") in the secular world. That is the "Catholicism" that amputated 19 previous centuries but became mainstream Conciliar Catholicism.
3. The "Catholicism" of Francis I: Leftist, Latin-American-style nєω ωσrℓ∂ σr∂єr + a rejection of Catholic theology and a substitution of secular political priorities for Heavenly ones. It's not even Protestantism; it's an altogether new invention.