My response to you is NOT about what the Protestants did or did not do. My observation is this article is deceptive. It is not a fifty fifty split according to whomever is publishing the numbers. The split was 50% of Catholics voted for Obama, and 48% of Catholics voted for Romney. So did that other two percent stay home, vote some third party?
Where did these numbers come from? And given this article is about Catholics why the need to inject Protestants into the excuse filled article? Fact is that the majority of Catholics in the United States are liberal. It was elected and appointed liberal Catholics that produced Obama's 'deathcare' act. Are we suppose to whitewash reality?
Only if you include those who will tell a pollster they're "Catholic", but can't be bothered to actually attend a Catholic church on any regular basis. Church-going Catholics voted for Romney 60-40.