Fair enough. It certainly wasn't comfortable viewing. But it was a way to kick-start discussion. It sure worked here.
There is something inherently wrong with taking a human life in most circumstances. But there are exceptions to that, currently embedded in Human Rights laws, and even those Human Rights laws change over time.
When is it not inherently wrong to take a life? Well, for a start, when it's the only practical and reasonable way to prevent another being taken. Suppose a bank robber points a shotgun at a hostage? Is it not reasonable for armed police to shoot to prevent injury to that hostage?
There is no absolute sanctity of life in legislation, Human Rights law or otherwise. And as I said, the Suicide Act 1961 explicitly decriminalised suicide. All Dignitas really do is to provide the option for a controlled setting, with safeguards, and a drug the effectiveness of which is far more controlled, than the option many people, including me, could use at home by using drugs they can either easily get, or already have at home. In my case, I have drugs here that will kill, and I have enough for a massive overdose, something of the order 40 to 50 times the necessary dosage. Should the point come where my decision is that that is my wish, and if that far more controlled option is not available, well, guess what? I have a DIY method available. I currently have no reason to believe that that time is any time soon, or that it will necessarily ever be the case, but I do have reason to, as the Boy Scouts used to say, "be prepared".