Specificity of change, scale of impact, and passive-vs-active management. Genesplicing can be highly targeted, whereas this isn't necessarily even targeting th

Specificity of change, scale of impact, and passive-vs-active management. Genesplicing can be highly targeted, whereas this isn't necessarily even targeting the source of the traits. For example, the (theoretical) inability of gay men to breed doesn't decrease the gene prevalence if also passed through their sisters. We could (hypothetically) see something similar here, where propensity for criminality is passed on by relatives and no amount of sterilizing criminals removes it because there's eg, a benefit to mothers having highly aggressive sons/brothers. Genesplicing only impacts the children, while sterilization has a large impact on the sterilized individual's hormones. Finally, genesplicing in/out traits and competing for fitness is bottom-up selection, rather than top-down (as trying to supress traits via mass sterilization would be), and thus more stable/likely to work, better respects personal freedoms, etc.