From your article: there is not a single absolute genetic difference, meaning no single variant where all Africans have one variant and all Europeans another o

From your article: there is not a single absolute genetic difference, meaning no single variant where all Africans have one variant and all Europeans another one, even when recent migration is disregarded. It is all a question of differences in how frequent different variants are on different continents and in different regions. The title is is not representative of what the article is saying; no serious scientist is making the claim that race is a social construct. They're just saying we shouldn't make medical or other assumptions about individuals based on race, which is of course true. The idea that races don't exist is a postmodern rejection of science based on a political agenda, and you should be skeptical of folks pushing it. If you study biology or evolution at any reasonable length the notion is just silly.