ancestry dna services reproduce whiteness by erasing cultural and historical specificity. the idea that you can be "40% scottish" as a material thing is horse shit. if you did genealogical ancestry and found that your great grandparents migrated from glasgow after a local industry failed, that is actually material and locates you within history.
If those DNA tests don't reveal that I am 5% extraterrestrial Alien I'm going to be pissed and demand my money back.
(Also great post btw)