Jando

I don't want to read too far into your comment, but if the intent was similar to: "Interracial children don't fall into classical racial categories and, as such, are proof that racial categories don't exist," that's fallacious. The fact that a lab and poodle can produce a labradoodle doesn't negate the fact that labrador and poodle are dog breeds. The spaniards had a system that classified people by percentages of ancestry, e.g. quadroon, octaroon. Today we have more modern technology and ancestry can be determined though the analysis of genetic markers. The usefulness of race can be (and is) debated. Its existence is hardly debatable.