Again, the strange practice the writers chose for this planet was eugenics. It's like writing nazis as a minority. I'm a Jewish person and my family's entire town was slaughtered by nazis. Romani people were also slaughtered in the Holocaust. I'm sure they would not appreciate their murderers being framed as the victims.

The writers didn't have to depict eugenicists this way, as if their practice was a benign cultural tradition. Eugenics is an awful practice that's killed tens of millions in the real world. It doesn't need apologetics that make people question "but what if we're being mean to the nazis by not letting them do their tradition of genetic modification for the betterment of their race?"

It's illegal to practice eugenics in the star trek world because the eugenicists literally took over as despots and oppressed everyone during the eugenics wars. Do you think that it would be appropriate to have people who are proud eugenicists come into your society flexing their supposed genetic superiority (another piece of writing I protest btw) and teaching people by their presence that eugenics is actually benign and actually does make one genetically superior to others?

When I think of the situation with Una, it makes me think of cultural practices like genital mutilation, a backwards practice that parents make for their children, as individuals, that is traditional but hurts their child. It would indeed be fucked up to hurt someone in that way, and it's illegal for good reason. It's not benign, but it also would be cruel to blame the child for something their parents did to them and make it illegal for them to participate in society.

But genital mutilation isn't genetic modification for the betterment of the race. There's no such thing as genetic superiority, eugenics is a pseudoscience and it's messed up and irresponsible to depict it as an effective benign thing that works at actually making a race superior. The writers should have chosen a different practice than this instead of worrying an episode that does apologia for a terrible practice that is illegal (in universe, not irl unfortunately) for a good reason