This isn't about IQ, or specific behavior, or superiority, any shit like that. This is just a question on speciation, taxonomy and genetics

How valid is this statement when applied to humans? People often call this statement silly while showing two radically different looking people, usually a an attractive (white) person and an ugly person (abo or very old/fat black person). This argument seemed transparently disingenuous, but then I thought about the speciation for other animals. The visual differences between humans are going to be more clear for humans naturally just like with other species, and animals generally "treat" us the same way. But for humans, would we ever look at two groups of the same type of animal that TEND to have certain traits based on location and not try to speciate them? And if not, doesn't that say something?