My wife and I are a "biracial" couple. We argue, fight and love. Differences are few. For example, we both fear hippies.
But when it comes to cheese, well, I just don't get it. We bought some bread/mushroom/brie cheese combination.
The wife: "this is not food for the belly, it's food for the soul!"
Me, not so much. Cheese should only be used to compliment meat.
If there is a genetic component to races, I believe the answer will be found in the Cheese Gene.