Well like how glasses fix myopia it isnt really an ailment anymore then. Ideally that's what we should be aiming for. Fixing - not making better just to make better
We only see people with PKU (phenylketonuria) or ALS (amyotrophic lateral sclerosis) living normally because of our advances in medical fields. Before in our history they would perish (or unfortunately be culled) like the stunted hawk
It's a highly grey area in ethics, but I think as long as we have best interest in mind and dont end up like the humans in Wall-E we should be fine. Star Trek also covers a lot of eugenics topics and in the end they also think humans should take the course of evolution and avoid things like designer babies or genetic enhancements
And its honestly incredible though. Humans literally fighting (and winning) against evolution/nature
I agree. Fixing some diseases and deformities while in embryo seems the most effective solution
Obligatory Gattaca link https://m.imdb.com/title/tt0119177/