This is one of my favourite things to discuss with people who are against eugenics. Is it not ok to become better? Is it ok to eradicate sickness with eugenics? What about living longer? Or is that cheating?
You can continue for as long as you please and watch them break down in where they draw their lines.
You can then pursue transhumanism, and ask if we will move beyond being human? Is that ethical? Is there a limit to