Eugenics is about imposing a system on society where only a chosen group of people get to have offspring, not about your individual choices or your kids. Otherwise choosing a mate you're attracted to becomes paramount to eugenics.

Also, everyone is thinking about evolutionary fitness. Some people just do it explicitly (and others do it by instinct/intuition)

Do you also think women shouldn't be allowed to abort Down syndrome babies because "that's eugenics"?

Do you think that the state shouldn't be allowed to kill unwanted Down syndrome babies after they are born because "that's eugenics"?

What about Down syndrome adults, who are reliant on state benefits?

In case it's not clear, I don't support the killing of disabled people at any age, but I understand that different people approach these questions from a different set of assumptions.

My point is that adding scare quotes around "that's eugenics" doesn't stop it from being an accurate description, so your question is not the gotcha you might think it is.

I don't think the state should be in the business of killing anyone.

But a woman aborting a Downs baby is not the state killing anyone, and most pro choice people would say the woman isn't killing anyone either, since the fetus isn't a person in their view.