what will be the consequence of that?
That's pretty much it right there. OTL he did hate, or at least seriously disrespect the modern-day Italians. The "noble, obviously Aryan" Romans of the past went and "polluted their Racial purity", producing the "mongrelized" Italians who let the Empire collapse.This was cited by him as the reason why the Italian military became such a boat anchor.
Well, I could see him disliking Germans of African descent (although certainly there wouldn't have been enough of them to focus all of his hatred on), but African Americans?What about African-Americans?