People need to face reality:
“Vatican II” was never declared to be infallible.
The history of the Catholic Church begins at the beginning of time, and you could say the first “council” was in 33 AD, either at the Last Supper, or at the Descent of the Holy Spirit.
The documents produced by “Vatican II” are ambiguously written (to say the least) and they can be construed to mean just about anything. If you want to know what the Catholic Church teaches, it’s best to read those documents from “Vatican II” with a VERY SOLID background in what all the previous councils taught.
Starting the clock on the Church’s history in 1960 leaves you celebrating such things as “clown Masses” and whatnot.