I dont know where you live, but I hope that you confront that ignorant bully (for that is what he is) and put him in his place.
vestiges of Racism still exist as you see. But they are the exception, not the rule any more. he is an anachronism that is trying to satisfy a parent that long ago lost all respect from society.
Given your narrative, I assume that you live in a predominantly white area. How many Italians? They are not white as your bigot would assume. How many Hispanics? iam sure he does not think of them that way, yet does he hate them?
The 'white' that he seems to think is so superior is a myth. For in truth most americans have more mixture of colors than the rainbow. And the intelligent ones celebrate that fact.
I am darker than my wife. She is Hispanic. I am not. But then we have many ancestors and that has led to the fact that a 'white' man can marry an 'hispanic' lady, and be darker than her. In point of fact, half her cousins and sisters are 'whiter' than most of the Aryan race purist out there.
It is a good article. The anseer to your question is, just jerks want to do that because they dont have the intelligence to accept the fact they are stupid.