Look at American history,it wasn’t founded on Catholic morality from the beginning but rather Christian morality(that is contributions from both protestant and catholic Christians). There was a 90 per cent literacy rate amongst the population at 1776 with most folks having learned to read from scripturally based primers or the number 1 early text book at the time, that is the Bible(which ironically the Catholics at the time weren’t encouraged to read).
You are right. And I am right too. Americans have drifted from Catholic morality. They have drifted from Protestant morality too.