im sure if he was a great earner someone would have eventually made him. there have definitely been people who have been made who were only Italian on their mothers side. John Veasey is someone who comes to mind. Hell John Gotti Jr. was only 75 percent Italian, so if you are a great earner then the rules really get bent/broken a lot of the time, we all know that. Hey, rules are made to be broken right? So you never know. I do know that Gotti would have never made him because of this, but im sure someone who was a little less strict on that part of Cosa Nostra would have let him in if he was either great at murder or earning, or both.