I think the honest issue is that it there are not endless supplies of breathing machines to help living people much less one who is dead.
I can see if it were used a bit to harvest organs for others, but beyond that it is hurting others who need the equipment to monopolize it for a dead person.
That is the other issue, the family does not want to accept she is dead and is that justification to monopolize equipment the living need.
I won't pretend to know what is in Jahi's family's hearts and minds - other than the grief they're going through must be excruciating beyond belief. As I said above, no one expects a child to die as a result of a routine surgical procedure that's so common it's literally unthinkable that one could die from it.
I cannot imagine the shock that they must have experienced to put them in the state they're in and I can only hope and pray that I never experience it.
Our family lost my younger brother in August 2012 due to a brain aneurysm. He was literally dead before he hit the floor. While tragic and shocking to our family, I don't think I could compare it to losing a child. A childs death goes against the natural order of things.