When I last visited Italy in 1966, the whole country was Roman Catholic, with the exception of the Communists, and the only ethnic minorities were some German-speakers in the north, French-speakers in the northwest, and Slovenian speakers in the northeast. To me, as a visitor, the rest of the country seemed purely Italian.
It sounds as though I wouldn’t recognize Italy today.
Italians will be a rump minority in their own land in 50 years. Diversity’s great, except for western peoples. I also don’t get why the taxpayer has to fund these religions, though they probably get taxed for the RC church.