Just like all the early 20th century Italian and other Roman Catholic immigration meant the death of the GOP as we all know Italians will vote Dim for ever.
You probably also agree with Al Gore that a 1 degree temperature this year implies that average temperatures will be 20 degrees higher in 20 years, right? Well I have news for you straight line extrapolation does not work well for predicting the future.
The Catholic vote has only gone republican about five times in our history.
Catholic immigration has always been an importation of the permanent left, and it is what we are still discussing now, as conservatives.