Which group of people do you trust to decide which other groups should be allowed to continue and which should become extinct, without any bias or personal preference?
Eugenics is always political.
> It’s certainly ethically dubious. And I’m not certain it actually has any effect.
> If it does works it is entirely possible it will lead to a healthier and smarter society.
Sure, and if Elon Musk invented flying hamburgers we could solve world hunger, which is just about as plausible as successfully using genetic selection to solve a non-genetic problem. The premise is false; anything that proceeds from a false premise is useless.
There’s nothing racial or political about this.
It’s certainly ethically dubious. And I’m not certain it actually has any effect.