Happily. I wonder if he's going to hang around hospitals telling parents that they can't have a bone marrow donor for their kids even of they aren't of mixed heritage.
Like Wulkan suspected your response is BS and not even remotely clever sounding. Asking what I am going to do instead is a diversion to draw attention away from yourself so you don't have to admit that you are wrong.
The world is a safer place without you practicing licensed medicine on anyone.
Indeed, your absolutist refusal to acknowledge the racial diversity that is staring you in the face each day is akin to those fanatics who deny their children medical attention based on religious convictions; not because they are right (they're not) but because they are out of touch with reality.
Humans are visual creatures. We compare, contrast and label everything around us including ourselves and each other and that covers race and racial differences too. That's why there are terms regarding race in every single language out there. There are common words for it, slang words for it and offensive words for it. People know what they are looking at even when people like you go around saying there is no such thing as race.
What's next for you? No such thing elephants, whales, squirrels, cats, dogs, apes or humans because we are all just mammals? No such thing as male or female because we could have turned out as either so that makes us all inherently neuter?
You would make fantastic writing material for George Orwell if he were still alive today.