As many have pointed out, trauma from the Eugenics wars is a big reason behind the Federations stance on genetic engineering, but that's just part of it. The Federation is a Utopian Meritocracy that celebrates diversity. Genetic Engineering undermines diversity and creates inequality in a society where everyone is granted an equal opportunity to rise and succeed. This is the other half of the equation as to why the UFP doesn't like genetic engineering.
As many have pointed out, trauma from the Eugenics wars is a big reason behind the Federations stance on genetic engineering, but that's just part of it. The Federation is a Utopian Meritocracy that celebrates diversity. Genetic Engineering undermines diversity and creates inequality in a society where everyone is granted an equal opportunity to rise and succeed. This is the other half of the equation as to why the UFP doesn't like genetic engineering.