I don't recall ever encountering a person arguing against the existence of races who wasn't either attempting to settle a scientific question by political ideology or else explaining why his expertise on the genetic facts was nonthreatening to the latter-day McCarthyists' political ideology. The collective decision of that political ideology to employ race denialism as a loyalty oath was a strategic error that will ultimately bite it in the ass. Those the ideology has infected would be well-advised to contemplate St. Augustine's advice on this topic.
"Usually, even a non-Christian knows something about the earth, the heavens, and the other elements of the world, about the motion and orbit of the stars and even their size and relative positions, about the predictable eclipses of the sun and moon, the cycles of the years and the seasons, about the kinds of animals, shrubs, stones, and so forth, and this knowledge he holds to as being certain from reason and experience. Now, it is a disgraceful and dangerous thing for an infidel to hear a Christian, presumably giving the meaning of Holy Scripture, talking nonsense on these topics; and we should take all means to prevent such an embarrassing situation, in which people show up vast ignorance in a Christian and laugh it to scorn."
If any of you folks tediously reciting the politically motivated canard that races do not exist has the balls to defend the proposition in a forum that has
actual standards of evidence, feel free to start a thread in
Natural Science.