Notice I said "pro-life and pro-family," not "Republican". I see no reason, as a Catholic, to be particularly enthusiastic about Mitt Romney. "He's less of a communist than Obama" is the closest thing I can give him to an endorsement.
Depending on which polls one uses, the Catholic vote has only gone Republican from 3 to 6 times in our history, they aren’t really 50/50, and immigrant Catholics are farther left than white Catholics, and the church is becoming even less white.
The South, or any region becoming more Catholic does not bode well for conservatives.