"We must say it very clearly: it is very certain what the religion of our grandparents was (i.e. what they believed and practised), and that this religion was (and is) true. This is more certain than the claim that the result of the Vatican II revolution is the same religion as that which they practicsed, or that the men responsible for this revolution were legitimate popes."

(Source)

"Some may hesitate to describe this Vatican II system as a “new religion.” But even setting aside this label, the reality remains. Nobody can seriously question that, within living memory, the religion of our grandparents and great-grandparents apparently underwent a wholesale revolution. The resulting system teaches doctrines which are incompatible with the Catholic faith and which had previously been condemned; it imposes laws which are harmful to souls; and it offers worship that is at least gravely deficient or even invalid."

(Source)