The doctors looking after my sister did everything they could to save her life. We never felt that the possibility of harvesting organs was put ahead of her welfare.
However I do not support an opt out system. Until you have been through a situation like this you can have no idea of the circumstances surrounding the death and how the family are affected. My sister sustained severe head injuries. After one operation failed to reduce the pressure on her brain a second one took place that the doctors told my parents meant that, if she survived, she would all most definitely be left very severely mentally, and possibly, physically impaired.
I was away when all this was happening but my mother said to me later that she never thought she would sit at the bedside of one of her children and pray for their death because she could not bear the thought of the pain and distress my sister would suffer if she survived.
The effect on both my parents, who were both in their late 70s, if my sister's body had then been subject to further surgery while removing organs without their consent does not bear thinking of. Remember, the body of a person who has died, but whose organs are being taken, is kept on a life support machine for two days after their death in order that there can be no doubt that they have died. The body is kept in a room in Intensive care. It is connected to machines so that the blood continues to circulate round their body. As a result they are warm to the touch, they have rosy cheeks and pink finger nails. The machine that keeps them breathing causes their chest to rise and fall as if they were breathing. Think of relatives living with this so that something can be done to the person they have lost, but not fully lost yet that they do not want to happen for any reason. It is difficult enough when the organs are being donated voluntarily.
Sorry this post is so long and so graphic, because I was away from home at the time I did not see my sister until she lay like sleeping beauty in suspended animation. I could cope with it, other family members found it very very difficult. It is too easy to say 'lets have an opt out system' without knowing what it entails.