Feminists

maybe not universally and maybe not here. But once the technology is available this sort of manipulation will be done by some.

And that really scares me. First off there's nothing wrong with being a tomboy or a lesbian (or an effeminate man or a gay male). Second we really don't know what else this is going to affect. Thalidomide was a great drug . . . until we realized the long term unintended consequences.

This could very well "work" for it's intended purpose but result in some completely unexpected side-effects.

Fix real problems in utero (or abort if you choose). Like fatal child-hood diseases. Leave quirks alone.