It not a matter of mixed race; it's more a matter of choosing cultures.
Do you like purple cars and gold teeth? Do you like engineering and harp music? Decisions, decisions, decisions.
Being "mixed" I can pick the best of both worlds. Cadillac CTS on "dubbs", 12 inch subwoofers, GWB sticker on the back.
As I got older I realized it was better to be tall, intellegent, and good-looking, (in that order) rather then white or black ;-)