See: Traditional Catholic Prayers: Union with WHAT?!!!, what concord has Christ with Belial
Apostate Antipope and antichrist and damned false prophet Paul VI: enthronement of Satan, papal infallibility,
In short order when the Antipope Paul VI destroyed the Western Catholic Church, he did it in two stages.
First he enthroned Satan in the Vatican on June 29, 1963 in a Diabolical ceremony wherein a child was murdered and offered to Satan by he and his cronies - the infamous [Satanic] Black Mass. Next in 1965 he promulgated the doctrines of Vatican II - being as that was a false council and he was an Antipope it was meaningless in terms of real binding doctrine, but with all the other blasphemous doctrines of Vatican II the doctrines proposed in the unfinished council of Vatican I, itself heretical, were included by reference to them explicitly in the Vatican II documents - therefore the apostate heretical doctrine of Papal Infallibility whereby the Pope elevates himself above God and His Son Jesus Christ, the only head over the Church, and the Holy Spirit, was included and promulgated by the THEN IRREFORMABLY ABSOLUTELY APOSTATE VATICAN. The "Pope" from then on pretends to speak infallibly for the god of the Vatican which since then and forevermore is Satan.
On the enthronement of Satan in the Vatican on June 29, 1963:
The promulgation by Antipope Paul VI of the false councils Vatican II/Vatican [I]: