I suspect the vast majority of Americans, even a majority of Freepers, would have no problem disconnecting life support in this case based on systemic costs. Overriding the familys wishes, their willingness to pay, and the availability of the needed services. Surgery to extend the life of an 80 year old by a year, open heart surgery for smokers and the overweight. Thats where this case takes us.
I think the past few decades have resulted in America misplacing its priorities and what it spends money on. There is no reason that anyone should have to die if we have the means to prevent it.