The State has always been affiliated with the World even though some nations are officially Catholic to this day. These nations often celebrate feast days publicly in splendor and fanfare much more than Canada and the U.S. would ever dream of. Not all nations with large Catholic populations, marginalized themselves as it were, by cowering to political correctness and giving up ground in Christian education, Catholic hospitals, and Catholic nursing homes. like the U.S. and Canada.
It is allowed for states to be Catholic, or Christian and there is no Truth to any rumour to the contrary.