Well, JFK was known for having said, "I believe in the separation of Church and state". That does not sound like a catholic. When Johnson took on, Pres. Johnson asked what was the next best money maker, next to war. Stephen Enke did a cost analysis and told Johnson to put all his "eggs" $ to anything that was Family Planning, contraception, abortion you name it and the USA was to be the know-it-all behind this. USA would use it on all nations, was pretty much how it went.
That is a reaction or a move I would say, to getting out of the war in Vietnam. I don't recall the book that I read that gave me this info, sorry, that was many years ago.