He threw his own parents under the bus when he was challenged on his ethnicity by claiming that his mother had an affair with a black man and he was conceived during that affair. He won't take a DNA test to prove it but that's his story and he's sticking to it.
In the memorable words of the character "Guido," played by Joe Pantoliano in the 1983 movie Risky Business:
"In a sluggish economy, never ever f*** with another man's livelihood."So sorry mom, too bad, it was just business, you understand.