Here's the difference: Eugenics can have a far larger effect. What if we got rid of a group that we considered undesirable (such as autistic people), but later it turned out they weren't? Or we killed people subject to a condition that we thought was genetic but wasn't? We would ruin a lot of lives for no good reason. Additionally, eugenics, while not inherently racist, is a tool that can be easily used to justify racism. I'd argue that deciding who reproduces and who doesn't isn't something that the government should be able to do, because of all possible abuse.

Additionally, the main difference is that theft and murder are things that you do. Eugenics is based on who you are. We can decide what deeds are good and bad to SOME extent, but we can't decide what people are good or bad.

I'm just saying that CHAZ isn't actually a serious threat to anything in America. I'm not contradicting anything that you're saying.

That's because nobody likes socialism. The only way to have a government that nobody likes it to make it authoritarian. If the majority of the world just gave socialism a chance (like they did in Europe), it would work out.