I’ll be the first of to admit those errors exist:
VCII, Bugnini’s Mess, ecumenism, religious liberty, etc.
Care to name any errors prior to the Council?
ROFL!
There was "historical criticism" of the Sacred Scriptures, de Chardin's weird evolutionary beliefs, John Courtney Murray's indifferentism ...
Let's not forget the operational errors of covering for sodomites, and elevating sodomites, heretics, and infidels to positions of influence, authority, and power.
"Traditional Catholicism" raised, educated and ordained men like Bugnini and Montini, along with men like Chardin, Murray, Leonardo Boff, de Lubac ...
"Traditional Catholicism" ultimately created Vatican II, and sent sodomites, heretics, and infidels to run it. They arrived with an evil agenda, which they had developed during their many years in "Traditional Catholicism". "Traditional Catholicism" was utterly powerless to stop them; indeed "Traditional Catholicism" had provided men like them with cover for more than 100 years.
VATICAN II DID NOT HAPPEN IN A VACUUM.