I wouldn't trust most judgements. People who have disabilities are not 'more prevalent'. They're getting more recognized for what they are, instead of being called crazy or some other misdiagnosis. Even still, if you want to go experiment with eugenics, the only program I want to hear is about getting rid of dumb-as-shit people who don't even have a disability. Really stupid assholes who, logically, should have lived a fairly-decent life if they gave two shits about it and tried. There are some people that need to be banned from the gene pool because there is really nothing there worth having.