I am arguing two points really. First, the genetic differences between people who were once classified as Caucasoid, Mongoloid, or Negroid are not sufficient to constitute separate races.
It is undeniable (except to liberals) that there are differences other than skin color between people originally from Africa, Asia and Europe, including average height, weight, physical strength, and intelligence (though we are prohibited from recognizing any differences in average intelligence). But you can also find similar differences between families from the same continent. Some traits are said to "run in the family."
Second, even if you could legitimately classify humans as falling into three separate races, there are very few people born in the United States that would fall entirely into any one of the three races. For example, Obama was half black and half white, but was considered black. Unless you apply the old "one-drop rule," Obama being black is purely a social construct.
I think you’re confusing race with species.🤔