Sure, but there are a lot of grey areas. Would you want your loved ones removed from the gene pool because they have peanut allergies, or what about asthma from

Sure, but there are a lot of grey areas. Would you want your loved ones removed from the gene pool because they have peanut allergies, or what about asthma from living near a coal plant? What if some governing body determined that you're unfit for reproduction because of your height or facial structure? Moreover, genes are not binary in the sense that there are "good" or "bad" traits. It depends on the time and place like sickle cell anemia, which gives you immunity to malaria, but has the obvious downside of making you anemic. And there are those naturally immune to diseases like smallpox or even AIDS [0], even diseases we have no knowledge of right now. I once had a fellow coworker who hinted at the fact that he was pro-eugenics (semi-jokingly) as he was a varsity athlete from a good college in good health. I had to remind him that just a bit over 100 years ago the US signed the Chinese Exclusion Act and that Hitler would not have considered him to be anything close to a true Aryan. [0] https://en.wikipedia.org/wiki/Innate_resistance_to_HIV https://en.wikipedia.org/wiki/Innate_resistance_to_HIV