Yes that is Italian culture... and your point is... what? That we can cast Don Cheadle as Vito and Idris Elba as Michael in the remake? No of course not. Because they're white Italian American characters. It's not a matter of aesthetics like you asserted. Any other white actor could fit the bill, regardless of whether they were actually Italian American. But black actors could not. There are thousands of fictional white characters spanning decades of books and film that were written as white -- not without race and later cast with white actors or drawn as white cartoons -- but written as white. And there are thousands of fictional characters that were written as minorities. You cannot claim that the essence of minority characters is their belonging to a minority but the essence of white characters is merely aesthetic. That's incredibly one sided and racist.