The obvious solution to this is to make up stuff. I, personally, always identify myself as an Andalusian “Other Pacific Islander,” which I think nicely splits the difference with the idiocy of the questions. Only once has anyone blinked an eye. She didn’t know what Andalusian meant. I explained about the Iberian peninsula and her eyes glazed over and she let it drop. I recommend everyone decide, creatively, on their race and ethnicity and stick with it. Worked for Elizabeth Warren.