in all nine species of female snakes they examined
I’m sure they actually did the study in an organized way, but I imagined them checking the snake species one by one. “Okay guys, that’s eight out of eight so far. If the next snake also has a clit, we’re calling it - all snakes have clits.”
I agree. Eugenics is about harming the rights of the would-be parents. It means telling them, “You have traits we consider undesirable, so we will forcibly prevent you from having any child whatsoever.”
To me, that’s different from parents choosing to avoid having a child with certain traits. Or not having children at all.
If parents decide to cure a disorder in their future child, or decide to abort a pregnancy, nobody is stopping those parents from trying again. The parents themselves have not been deemed undesirable and unworthy to pass on their genes.