Are Tracy McGrady and Vince Carter cousins?

I know they are. Recently I have had found something rather interesting. There DNA has some issues. They both have superstar potentials. Tracy proved himself when he averaged 33 points with Orlando one year. Vince proved himself when he averaged 29 with Nets one year. Both of them are very good jumpers/dunkers/inside scorers, and can do fancy stuff and even shoot. But all they do is shoot perimeter shots, and they seem to only score 17-22 points a night. When they are hot for a game, they seem unstoppable. I think their DNA has some issues.