Italy and Spain haven't been Catholic since they embraced socialism, France has not been Catholic since Robespierre came on the scene and Greece, that great Orthodox stronghold, thoroughly embraced communism for the better part of the last century. So much for Orthodox winning hearts and avoiding legislation.
According to you. Last time I checked, the Vatican may disagree with you assessment. All those countries have a 20-25% agnostic/atheist population, but the remainder consider themselves Catholic. France also has a portion of Protestants and Muslims as well. Germany is about evenly divided between Catholics, Protestants (Lutherans) and agnostics/atheists.
So, according to you, none of the Catholic girls and boys in the US have extramarital sex, don't use contraceptives and no abortion? Well, you are wrong.