Biology is race. Of course some biology will affect the cognitive frames* (*background, upraising, society, culture, people you meet, everything that has affected your life), but there are many more affects on life and bigger than biology and there are cases were biology won't affect anything at all.
If nationality is blood then I would be swedish and imported children from africa would be african and not danish, despite them having "danish parents".
You should look up some of the social science on this field and you would see that the cognitive frames has a larger impact on nationality than anything else.
But to simply these things, people are what citizenship they have - that is the written paper on what you are.