Lets say we pull a fish out of a fishtank and allow it to suffocate, why can't we breath life back into it again even if all its organs are in completely intact?
Why can't you un-cook an egg? The death of any organism triggers an immediate chemical reaction toward decomposition, as the cells are starving themselves to death for want of energy. If this were not the case, then the successful Cardio-Pulmonary Resuscitation of a patient that has had absent vital signs for >6 minutes shouldn't cause any brain damage at all. It does, thus your argument is null.
Edited by Michamus, : Corrected CPR analogy for clarity.