[stereolambda]

Honestly to me inequality has been always the main reasonable angle of attacking gene editing. But if vaccines are an analogy, many countries were eventually able to mass vaccinate for dangerous diseases. So this could be only the question of cost, after some period of only elite availability.

There's no inherent metaphysical worth in being on any particular level of strength, height etc., so we can spread whatever is the most convenient. I think arguments against (that I see being made) ultimately devolve into some magical thinking and a priori thing bad. (I am glad to be shown otherwise.) In fact we are already messing with human fertility in possibly unsustainable ways, so maybe more tools are needed as a part of the way out.

Of course there is political execution, corruption etc., but I don't see it any different from other technological challenges that civilization has dealt with. I.e. we need better politics but the tech is not at fault. Gene editing is isolated interventions, so it's in that detail more manageable than for example mass surveillance which is hidden and continuous.

One more esoteric argument is that we cannot socially agree on what traits are desirable. The ‘The Twenty-first Voyage of Ijon Tichy’ scenario. So opposite to "monoculture" in a way. But I don't see people expanding on that.