What skewed the final numbers is the so called hispanic "Catholic" voter, Catholic In Name Only, in it for the free stuff.
But there is a huge difference. Romney at least loves this country - obama - not. Romney wasn’t in favor of infanticide that I know. Romney didn’t hobnob nor keep company with communist/marxist people or surround himself with them.
How much difference do these low-information voters need?
“White Catholics voted 60/40 for Romney. His problem with conservative Catholics wasn’t that he was a Mormon...”
That may (or may not) be true insofar as white Catholics are concerned.
However, I sense that it was indeed a problem with white (observant) Protestants, and even moreso with Fundamentalists. The “Mormon factor” probably cost him a considerable number of votes with these groups.