I see no reason to indulge in perpetuating an irrelevant fantasy in either direction.
People are people. Not show dogs.
There is no value of any sort in some sort of genetic pedigree.
Just put “mixed” and refuse to play any game of percentages.
Not only do you get to be factual, it seems to unhinge both the left and apolitical atheists. Worth doing for that alone.
I always check “No answer” when filling things out that ask for my race.