Oh please. Are you truly unable to differentiate between unwrapping the umbilical cord and the continued application of an artificial breathing apparatus?
Just in case you can't, here's an important distinction: the removal of the cord is an act that is finite in duration with permanent positive consequences. In contrast, the child mentioned here will die without the continued, permanent application of artificial life support.
In that case, maybe we should get rid of pacemakers, heart surgeons and organ transplants...
I know the difference, I just asked where the line is drawn.