I did read that, I was just adding an argument pro limited CC 
Absolutely yes, there’s plenty (ratio still being less of them than what you’d find in America, for example). I just feel like every ethnicity, race, religion, has a history of integration or not in any given country. And especially in countries where diversity isn’t exactly seen positively by a large piece of society (among which Italy, unfortunately) I feel like it’s important that a character is portrayed correctly, not just in relation to their identity and personality, but also in the great scheme of things.
In a way, paradoxically, I feel like full CC in certain kinds of stories is more limiting and unrealistic than limited or none at all. If you get what I mean, I don’t know if I managed to explain it well.