If all the Catholic in name left the faith tomorrow, the ones that live the faith would still dwarf any protestant denomination in the United States.
Three things:
1. How do you personally know how many Catholics are "Catholics in Name Only?" I contend you have no idea what that real number is.
2. The numbers Daniel cites are remarkably consistent with the liberal social beliefs of my Catholic family members and other Catholics I have met. About the only time I get to personally meet socially conservative Catholics is at pro-life rallies. My Catholic in-laws up north are not only pro-abortion but pro-gay.
3. Since when did size matter anyway? There are, last I checked, 1.6 Muslims worldwide. That's more than the 1.2 billion Catholics. Does that make Islam right? How many people were right with God in Noah's day? Eight? What does this verse mean to you?
Mat 7:13-14 Enter ye in at the strait gate: for wide is the gate, and broad is the way, that leadeth to destruction, and many there be which go in thereat: (14) Because strait is the gate, and narrow is the way, which leadeth unto life, and few there be that find it.
And what is the promise of Jesus concerning numbers?
Mat 18:20 For where two or three are gathered together in my name, there am I in the midst of them.
Peace,
SR