I think Pippa doesn't realize that Eugenics talk will ALWAYS boil down at the end of the day to what people consider good or bad, and most people would view dark skin and curly hair as bad.
For my issue with eugenics, it's more down to how modern eugenics would be done with DNA editing, if some gene gives you a possibility to get some horrible debilitating health issue, but that gene gives you absolute certainty to not get some terrible disease, is it worth it? Like where is the line, and is there some other unknown far off issue for getting rid of that gene, that might only pop up in 2-3 generations?