Genocide is multidimensional.
There is out-and-out haphazard individual murders and organized murder, with or without the support of the state
There is abortion if a genetic test determines a certainty or strong likelihood of an unwanted syndrome (Down's, Asperger, autism, etc.), which is simply social attitudes played out in parents' minds (what kind of miserable occupational, social, romantic existence is he or she gonna have, relative to ours?)
Some people (Catholics) are going to think that simply preventing pregnancies with contraception or sterilization in couples that have a heightened risk is murder enough (relative to simply letting nature take its course, and if you look at it that way, you can see their point even if you think voluntary contraception and sterilization is a good idea); of course, in the last century, the Americans and Germans have forcibly sterilized some of their people with disabilities, which is something plenty of people are going to object to for reasons of choice
And finally, let's not dismiss the power of large-scale rejections in an individual's life and his or her suicide risk. We have determined a single man's suicide risk over age 45 is considerable, as people age, their parents usually die, siblings may move, be too busy with their own families. (You might not want to use the words drop dead to address unwanted romantic attention)
Hey, it's Mr. Genocide here, asking you again to please abort your Asperger fetus again, so we won't have to encourage him to try suicide when he is fifty, OK? I'll check back about next week, OK?
The society is the problem. It makes the prospective parents get the abortion, or do the chelation, or if all else fails, makes the Asperger adult try suicide, or at minimum, fantasize about it.
When I started reading Emile Durkheim Rules of Sociologial Method, I had an academic appreciation for society trying to eliminate deviance (and address deviants) with informal and formal sanctions for nonconformity. For a long time I smugly thought, well, no one is trying to kill the Aspergians.
By themselves, anyway.
And as for the ones who live to the end, what life is that? Life should be more than metabolism.