Depends on the severity of the handicap.
I'm probably, in so many eyes, a terrible person for thinking this, but if the child has otherwise no chance of survival without assistance, why try? I would rather abort my own handicapped child than pump money in trying to save it. I can't in good conscience let a handicapped child try to fight its way to survival, especially through artificial means.
I guess what i'm saying is, if you take modern healthcare out of the equation and in those conditions the child would not survive, then what are you really accomplishing by using modern healthcare to save the child?
This ideology really doesn't work at all considering in centuries past just how many infants died during & shortly after birth. C-sections, premature births, & so many other such predicaments are common place & essentially quite fixable in the modern world. Not so much in our pasts.
Also, what is accomplished? I'm pretty sure there are a number of diabetic individuals & those born prematurely who enjoy being alive thanks to big bad artificial means.