That chart isn’t “ancient history” and it doesn’t include the FDR elections, JFK gave us the Vietnam War and the 1960s and the 1965, Ted Kennedy immigration bill, those years spelled the end of America and the beginning of third world colonization and our eventual disappearance as anything that we will recognize.
Catholics continued to vote against the Republicans in 1968, 1976, 1992, 1996, 2000, 2008. The few times they didn’t go against the Republicans were generally for a reelection of a sitting President.
The Catholic vote is to the left of the Protestant Hispanic vote.
Again, by definition there are no faithful, beleiving Catholics who vote liberal. That is all there is to it.