Anyway, I 100% disagree and would be never let my child die from something simple as refusing a blood transfusion. Of course there are risks, there are risks to anti biotics but you wouldn't let yourself die from refusing those, would you?
Alternatives and expensive and time consuming, in most cases where blood is required immuniatley you would be dead.
The risks associated are low, the main aspect being the fact that at one point people were infected by HIV because it wasn't tested and we don't know what else could be passed on through the blood that we don't know about, which is silly, if we don't know about it you may already carry it.
JWs belief, from what I understand, is about distroying/ contaminating their lineage, I think although they may highlight risks of blood transfusions the main reason for not accepting blood is that. But I'm not 100% on that.
If my child was bleeding to death in a&e and needed a blood transfusion to save him I wouldn't hesitate, even of risks were high, because I would rather them be alive, we can deal with possible complications if they arise, but at least I would have given my child a chance.