[orangepurple]

Alloco 2007 looked at random locations of single nucleotide polymorphisms(SNPs) and found that, using random SNPs, you still get very good correspondence between self-identification and best fit genetic cluster. Using as few as 100 randomly selected SNPs, they found a roughly 97% correspondence between self-reported ancestry and best-fit genetic cluster.

https://pubmed.ncbi.nlm.nih.gov/17349058/

[pessimizer]

Were the formulations of genetic clusters created through marking samples with self-reported race? If so, why couldn't you create an entirely different rubric of race by choosing a few arbitrary features to define each of them and find exactly the same thing?