Baptized, Confirmed...you left out practicing. Just an oversight?
But you are probably correct about not being able to convince them. A guilty conscious is a formidable opponent. Using artificial contraception in contradiction to their faith would surely set up a conflict and I can see them taking out their frustration on a candidate who by his personal positions would magnify that conflict.
Out of curiosity, what are their views on the contraception mandate by Obama?
All opposed.