But what's the problem with manipulating people to be healthier, smarter and more attractive? Wouldn't that improve the world? Everyone benefits if humankind becomes less dumb.
But many people have imagined dystopian consequences - creation of a lifelong underclass; negative side-effects that take decades to manifest; having big corporations and government gatekeeping conception; monoculture and loss of genetic diversity; what would become of us pre-editing humans; impact of state control of genetically-predicated personality traits; and so on.
Is their destiny to be out-competed by those groups with the best gene editing technology?
What if a particular highly effective gene editing technique is perfected and patented in country A and they refuse a license to country B because they are rivals?
What if in country Z only ethnic group X is allowed to receive the treatment?
It really just exposes that people in power don't want to make it obvious that they've got an unfair advantage, and that basing society off of competition is what's bad.
Can't you say the same about private school?
The only similarity I can draw is that both have been restricted internationally.
In the jargon of game theory, in the absence of a ban, everyone doping is the only strong Nash equilibrium.
The fear is gene edited babies would trigger the same effect: If I'm in my country's richest 3% and I know parents in the richest 2% are gene-editing their children to be healthier/smarter/prettier, can I afford not to do the same?
And we can't rely on national governments to provide bans - if I'm Country A's leader, can I afford to ban gene editing if our rival, Country B, is making full use of it?