But why? You can have a shared language, shared food, shared customs and shared values despite race. Brazil is exemplary in this regard, where most of the country is mixed race and everyone is having sex with everyone else despite race. A former co-worker of mine, Wesley poignantly lamented this when he was in the US, when people ask questions like "What are you, Japanese, Chinese, Korean or something else?" and he was like "Huh? None of those. I'm Brazilian."