if there is no other choice. Yes, reluctantly, I would accept hiv. (i.e. I accept days to years duration of life vs minutes to hours)

The thing is, donated blood is always in short supply. you dont have much choice, when you have a serious blood-loss.

edit: I would be very angry if sombody would have chosen to use hiv blood on me while I was uncounciuos. Similar to how I would be angry if my arm would be amputated, while my conciousness was away.