Lest we forget... the term "white" is very different in the US from what it is in the rest of the world.... even in Apartheid-time South Africa, a person could "migrate" from black to colored to white in 16 generations and in Colonial Spanish America, the white Conquistadors had 46,656 possible race permutations in their attempts to codify the races into 16 possible marriage mixtures...

I think "race" is a myth... but a powerful one!