Euthanizing Highly Autistic Children

Should parents be able to euthanize their autistic children ? (I'm talking about highly-functioning autism)
In a society where you can euthanize near death patients, I see the same scenario going to high functioning autistic children.
Euthanizing autistic children will save tax money and end their misery, so it should be legal

RXR.: No, but then again I don't think euthanasia should be legal in general.

Just kidding on it being legal. But still, if society thinks its ok to kill terminally ill patients just because they are ''suffering'' but not turn it around and euthanize high functioning autistic children who also suffer. Than there is something wrong with that logic.