No kidding. To measure the value of a human being based on a single defect is ridiculous. And people with Downs seem to have a special grace as compensation. I'd rather be stuck on a desert island for 6 months with a couple Down Syndrome kids than a pack of university professors or folks like this writer, that's for sure. He's the one with inferior worth, because of his arrogance and self-righteousness compared to the kindness and unassuming nature of folks with Downs.
I'm not sure what calculus this so-called "objectivist" is using, but he's got a serious logic flaw in there some where. Probably right next to his socialist leanings and fellow travelers ideology.