Because it is the view of the vast majority and in face unanimously among medical authorities that they are extremely viable and nigh irreplaceable as a functional treatment.
We demonstrate every day that this is not true.
How did they determine that such a high number is in necessary?
From the numerous studies they took their stats from....you didn't watch the video either, did you?
We have tons of cases where people didn't get blood and died. The rejection rate is extremely low and even that low number dwarfs the number of cases that deal with infections being passed.
We have equal numbers of cases where people didn't get blood and lived, in spite of the dire predictions of medical personnel. People die in spite of the fact that they have transfusions.
We have proven that doctors can be dead wrong about blood and its effectiveness.
My brother lost more than half his total blood during that surgery. There is no doubt he would have died. Add that to the fact you have about the same chance as being struck by lightning than get a disease from blood that makes it pretty safe to say benefits outweigh the risks imho
I have a close friend who lost more than half her blood in an auto accident. She was told point blank that she would die without blood. She didn't and recovered quickly without any blood transfusions being given. So how can doctors say with any certainty that someone will die? They don't really know....all they can do is guess.
That the benefits outweigh the risks is simply not true in our experience....and doctors are realizing it. We recover more quickly and with less post operative complications because we don't have blood.