>>14317041There's a very good chance that most of the people doing heavy lifting work, including industry and military, are people below the range you'd consider "smart". Yet they are fundamental for keeping the world turning.
There's a good chance the guy that delivered you from your mother in a hospital is a tiny bit more of a clean freak than others. That moderate level of OCD might be benefitial. There are plenty of extremely mentally ill people that did great contributions to science, art and philosophy and would otherwise have not existed.
The kind of behavioral flaws needed for someone to become a Newton (antisocial sperg that spends entire life studying math in a closed room) are the same ones that typically allow for extremely high IQ. All of the top IQ people are generally mathematicians, theoretical physicists, chess players or other things like that. Many of them die childless.
If you're specifically talking about chromosomal disorders, as long as the person is not suffering a lot with them, I don't see how they are necessarily doing worse than some high IQ person doing an useless self serving job that doesn't contribute much to anything.
I suspect, however, that you're not concerned with the suffering of people with genetic disorders. You're more concerned with them using up your precious resources because you're clearly the good quality gene stock. The problem is I fail to see how you actually quantify how much better you are and why you should be kept around rather than someone with a lower IQ doing some actual work.
If you're actually concerned about suffering you'll probably end up in a highly religious route or defending antinatalism. Eugenics has nothing to do with this.