I understand your perspective. I just have faith, I guess, that as other Catholic demographic groups have verrrry gradually decided to vote conservative, so will some of the assimilated new Americans. I am not as pessimistic as you about the future. I am really worried about the near term effects on conservative issues. If we do not keep the majority we have NO HOPE of controlling immigration.
I'm Catholic, too, and cringe at Liberation Theology, etc.
Maybe I am a pessimist. I know I've become a cynic. I've just seen too often the cognitive dissonance a lot of Cahtolics have between the way they conduct their lives and the way they vote.
My own dear father-in-law is a good example. A more conservative businessman you will never meet, but even as he rails against the popular culture, abortion, high taxes, etc., he votes liberal Democrat every time, because they're for "average Americans, not the fat cats." It drives me nuts.
I hope you're right and I'm wrong, because the Republicans are banking their future on Hispanics voting conservative, and I see no evidence of that from history.