The catholic church was corrupted long before Vatican II. The moment the Pope and his court appointed themselves as universal dictators over Christendom. All one has to do is look at the wickedness of some of the popes who committed murder (Borgia), adultery, fornication, the heresies of indulgences and the purchase of the Papacy (simony).
Catholics who sought to counter the Reformation, that led to the Council of Trent in the 16th century. The council sought to impose order amid the chaos by, among other things, standardising the Mass.
It did much more than that. It unleashed the Jesuits and persecution on anyone who didn't buy into the extra-biblical catholic doctrines, and resulted in the Inquisitions and 30 years war. They tried to FORCE people to abide by catholicism - sounds alot like miliitant islam to me.