The one drop theory was a stupid extrapolation of a flawed policy and one of the prime examples of what Elder McConkie said we need to forget. Period.
Actually, I’d better make it clear I’m NOT thinking of our church here, rather the stupid idea that anyone out there is black even if they’re 199/200 white. See the debate over whether Beethoven is black for example.
We’re all mixed to some degree anyway. Even northern Europeans have a touch of Moorish pirate in them.