Their median age for females is 47 --- perimenopausal.
They chose to have no kids, and, poof, no future.
You can't populate an Italian future with robots. There will still be an Italian peninsula, but there's no Italian cultural survival foreseeable.
There may not be a high probability of Italian cultural survival, but there will be NO Italian cultural survival if they let in millions of unskilled Muslims and Africans.
For every person let in who has to be supported by the Welfare State, taxes will have to be extracted from Italians to pay for it, leaving them feeling even less able to contemplate having kids. When that welfare state finally collapses, it will be ugly.
Italy needs to figure out ways to motivate NATIVE ITALIANS to have more kids. Yes, there are still plenty of Italian women of child-bearing age to do it.