I claim that’s what Catholics should be going for in my most recent column at Catholic World Report. There’s some to-and-fro in the comments with Mark Brumley, the CEO of the outfit that publishes CWR, who seems to believe in American pluralism more than I do.
At bottom, I think the issue is that he starts his analysis with the current interpretation of Dignitatis Humanae, the Vatican II pronouncement on religious freedom, while I start mine with the normal relation between a political society and the goods those who take part in the society want to further and protect. If the influence of Catholicism on public life grew it seems the two would begin to point in different directions. As I suggest in the discussion, though, it seems to me the interpretation of DH would likely (and legitimately) shift in response to such a change. That’s the function of the expressions like “due limits” and “public morality” that are found in the document.