Sounds a lot like ethnic cleansing, doesn’t it?
That’s the point William Saleton makes in this article from Slate about preconception genetic testing, although he doesn’t come right out and say it. What he does say is that we as a society are devaluing embryos and slowly changing our perception of parental obligation to include having embryos tested for the potential for adult diseases. We are moving toward eliminating certain genes from family trees entirely. Right now only ones that can cause serious diseases, but we have already moved from fatal or crippling childhood diseases to adult diseases which can be cured. And it is, as they say, a slippery slope.