@Joanne00
My people (Albanians) are never represented, like literally very very rarely. However, I can still create a story set in Albania, still represent the people, still represent my culture and allow full customisation of the main character, if the ethnicity of my character is not of significance. You cannot use a demographic area and say you cannot portray the people who live there accurately if you add full customisation.
You still can 
As I said earlier if the character is a native Italian, I understand, and if they’re not native Italian and just someone who lives in Italy, then their race shouldn’t be of significance. At the end of the day, it’s the authors choice to represent their character however they want, as long as they haven’t portrayed them in an offensive manner or anything of that sort. 
I am all for full customisations and for limited customisation. I am specifically talking about this point here that you keep on referring to:
And you both keep referring to my point:
Like I said if the ethnicity is not of importance, then you don’t need to revolve the culture completely around the character. Good character development and representation does not only rely on culture Culture isn’t the only thing that makes a character who they are.
Again, I am all for full and part and also no customisation. And just like @Creole_KareBear said:
I am not saying you cannot have limited customisation or a native Italian. I am just saying that if the character isn’t a native Italian, you can have full customisation and STILL portray the rich culture that Italy has.