OTOH, the problem with eugenics is, who gets to decide

Unfortunately, that's the problem with so many things. I'm a firm believer that problematic politicians, judges, prosecutors, and police should simply be murdered extrajudicially, but once that genie is out of the bottle I can guarantee that people simply angry about going to jail will be committing as many or more murders than the righteous.

Likewise, voting. Most people don't deserve a vote, and should basically be enslaved for the good of humanity. Free will and self-determination should be left to their more intelligent and more ethical betters. But if we ever enacted something like that, it would immediately be weaponized to oppress people based on attributes that have nothing to do with why the system was put in place