I think so. In case you have not noticed there seems to be a shift to the left in the attitudes and beliefs of many Roman Catholics since Vatican II. And this is noticeable in Roman Catholic politicians. Polls cited by Roman Catholic journals, indicate that many Roman Catholics now appear to have no moral problem with artificial contraception, divorce, abortion, SS marriage and homosexual activity within a committed relationship. Before Vatican II, I don’t think you would find many Roman Catholics in favor of SS marriage.
Well, this is one that I don’t think Vatican II has anything to do with. In the US, the northern Catholics were primarily Democrats for many decades before Vatican II
This was primarily because the Northern Democrats had programs where local ward bosses would help Catholic immigrants find homes in Catholic ghettos in order to secure their vote.
The rent was dirt cheap and when elections came, the new citizens were told they needed to vote Democrat to keep their home.
The New Deal also cause urban Catholics to join the Democrats just like it caused urban African Americans to join the Democrats.
Therefore, Democratic Party became the primary party for Catholics in the North by the time WW2 ended (if not before).
And as far as Birth Control is concerned, there were many Catholics who wanted to see birth control allowed after the Church of England allowed it. Back in the 30s the Pope had to write a document about the immorality of birth control. Then, during the 50s and 60s many Catholics thought this would change, esp after the pill was released. Many theologians, bishops & cardinals were arguing for birth control and still dissented after Paul VI.
Also the Catholic priests who convinced the Kennedys to accept abortion were not persuaded by Vatican II. They already had heretical views long before that.
The post Vatican II was hijacked by the liberals, but Vatican II didn’t create the liberals. The Freemasons in Europe did.