...and the fact that we are importing Catholics by the tens of millions ...
If this refers to Hispanics, and I don't mean this contentiously, do we have numbers on how many of them are Catholic these days? I'm thinking that one reads of rises among Hispanics of the Jehovah's Witnesses and of some Pentecostal churches.
...the Catholic vote,...
And therefore I also wonder if this phrase is much more meaningful than, say, "the blond vote." That is, I suspect a lot of "cultural Catholics" are also "cultural Democrats." They've never really examined either their faith or their party affiliation.
Mexico is a Catholic country and the great majority of them moving here are Catholic, the ones who convert to Protestant churches are not much of a problem because they then become more conservative, Bush got 56% of their vote in 2004, for instance, they appear to be about a 50/50 vote.