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.

you should be very wary of these useless tokens of pseudo information

consider the following: you have the same ancestry percentages as another human. does this actually say anything about either of you? does it give us any truly airtight predictive information about how you behave as individuals? if not, then by purely scientific principles, it is worthless information. it only serves to cement the status of individuals within the category of whiteness, or more specifically, "nonblackness"

if you are white and interested in your ancestry, go ahead, learn about your family history, learn about the cultures and material forces that produced you. these are good things to learn about because it will only make it more clear that whiteness isnt a stable category and the "shared white western culture" that reactionaries prattle on about is nothing but myth. spitting in a cup wont teach you jack shit.
@dankwraith not about your family history, but it's still very worth doing for health reasons fwiw, just don't pick a company like 23andMe that performs whole-genome on you, gives you a tiny fraction and then refuses to hand you the rest while they monetize the shit out of it