What exactly does good, desirable traits look like? Would we also be able to manipulate personality traits and mental health? I think it might have somewhat of a net positive result for society If everyone regardless of social status was given the option to be genetically modified. Everyone would be programmed to be smart and kind and healthy, with no diseases, no sicknesses, no rude people, no jealousy, no criminals, no depression, anxiety, etc. It seems like the perfect world, but I don’t think this would exist anywhere but in a computer simulation. Especially because we cannot manipulate people’s genes to give them better personality traits, there would still be criminals. Mutations in genes also happen all the time. In the movie, the real Jerome is a modified person and still ends up crippled, this shows that there isn’t a hundred percent guarantee that every modified person would turn out “right”, or be more capable of dealing with life’s challenges.
If I lived in that world I would want to be a genetically modified baby, I want to have a better chance to succeed in life, and not be discriminated against. Vincent has to clean dead hair off his body in blue light every morning, strap Jerome’s pee to his body, keep Jerome’s blood with him, put on artificial finger skin infused with Jerome’s blood, and live on the edge every day because he might get caught. It’s so extreme and it’s just something I would never want to do because anything could go wrong, at any time as seen in the movie. If they decided to do the blood tests again, he wouldn’t have had enough blood samples. If the doctor decided to out him since he knew, then the plan wouldn’t work. If he put the finger skin on wrongly or mistakenly scanned the wrong finger, his real identity would be exposed. The littlest mistake could cause his entire identity to be exposed. I don’t think I want to live like that, I definitely wouldn’t roll the dice, I want an easier life, and that means being genetically modified in that society.
In Gattaca, people are segregated into valid and invalid. People who are invalid, faith babies, who aren't as perfect are discriminated against, they are not allowed to advance in society, and their jobs are to be the cleaners. “Genoism”, what Vincent faces in the movie, is essentially racism but instead of discrimination based on race which isn’t real, it is discrimination against genes which is scientifically proven. The entire movie is also based on eugenics, encouraging the reproduction of humans with desirable traits and discouraging those with weaker traits. When Vincent's parents wanted to have another child, they decided to have a genetically modified child, who is “a boy, fair skin, healthy, smart, not violent, etc.” This child was worthy of his father’s name Anton. Even the parents were discriminatory and loved one child more. They also didn’t have enough faith in Vincent because he was invalid, he was not expected to live long, even though he was incredibly smart, he could outswim his brother even with his heart condition, but without taking on someone else’s identity he wouldn’t have been able to accomplish his dream because the people in charge in Gattaca refused to look past genes. This is the way people in our society most times fail to look past race, your race determines whether or not you can get a house in certain neighborhoods, the quality of your education, etc.
There isn’t a justification for eugenics, because it will always cause discrimination. But, gene modification should only be used to cure certain illnesses or diseases like cancers and heart diseases, etc. not being the traits you want your child to have.