Well, if the phenotype or trait due to any random gene was the differentiation between race, species, or anything else besides that specific trait, you might have a point in support of OP. But unfortunately for racist ducks there are so many differences, and similarities, that have nothing to do with hair color or height. Any given swath is it's own mosaic of combinations, no matter what we label it.
I read what you wrote there several times and can't make heads or tails of what you're trying to say. Are you claiming genetic differences aren't why species are different? Are you claiming chimps and humans don't share most of their (protein coding) genes? Are you attacking a strawman where you think the people you are attacking are claiming specific single gene differences are why they claim races are genetically different?
I'll add that "racist ducks" is a bad sign there, since arguments about facts don't have anything to do with motivation, and bringing up motivation is an ad hominem argument. "Argue like this and you are a bad person."
