It's pretty useless unless you could get people to actually do it. Hitler gave eugenics a bad name. I've read something talking about high IQ sperm banks being eugenics that was written in a way to imply that this isn't incredibly obvious, so maybe people are bad enough at it that some things could still work. The problem is figuring out what they'd allow.

I think it's that people feel okay with a woman choosing the father, because she can when she gets pregnant naturally, but don't like the idea of anyone else influencing it.

Coercive eugenics is very much disliked, and governments are untrustworthy enough that this is probably quite rational.

However, some technological innovations could make liberal eugenics much more feasible. Sperm banks are low-tech but only for those who don't care much about the identity of the biological father.

It could become possible to improve selection from the parents' genes before conception (e.g. sperm selection according to 'good' genetic markers). But this would probably still require IVF, which comes with extra costs and efforts, and is less fun than ordinary conception. Many pregnancies aren't chosen at all, or at least not by both parents...

FWIW, intelligent people could be more dangerous in the long run unless they are also benevolent in a sane way.