What, exactly, about the post is racist? The parent cited specific biological characteristics. Generalizations are not racist. Nobody claims it's racist to say that Kenyans tend to be good runners because of genes. In fact, The Atlantic made that claim [1]. The parent poster is making similar types of claims as The Atlantic article.

Poor post, ok. Racist, no.

[1] https://www.theatlantic.com/international/archive/2012/04/wh...