Anecdotal cases aren't meaningful. There will always be people who murder their loved ones, either out of hate or sometimes out of compassion. That doesn't make them legal or related to the issue we are discussing.
Btw, there was a case in my own small city well over 10 years ago, where a mother murdered her two sons who were victims of the horrible disease known as Huntingtons Disease. If you're not familiar with it, it's usually genetic, and it leaves the individual with uncontrollable shaking, some cognitive decline and eventually totall dependence. Her two adult sons had been in a nursing home for a few years, after becoming totally dependent, and she walked in one day, and shot both of them because she didn't want to see them suffer any longer. She was given a five year prison sentence, partly due to the fact that what she did, while illegal, was an act of compassion, and she was no longer a threat to society. I do think she was lucky to get off so easily, but I also understand how difficult it must have been for her to see her two sons suffer so horribly and giving her a life sentence would serve no purpose, imo. Huntingtons is one of the most horrible neurological diseases I've ever seen anyone suffer from, although over the years I spent as a home health nurse, I only had one patient with this disease. His wife was his caretake and she was having a very difficult time trying to provide care.
Most people don't kill their loved ones due to their suffering in such a horrible way, so I don't find your anecdotal examples as related to legal assisted suicide or voluntary euthanasia as it's also called. In fact, sadly, someone with Huntington's wouldn't have the option of assisted suicide under the current US laws because it would be difficult to predict that they have less than 6 months left to live, if you can call that living in any meaningful way, and they may not be cognitively intact enough to be approved for help.
I just wanted to give you an example of someone who could no longer watch the suffering of their loved ones, so they killed them, in exchange for a prison term. It's rare that someone has the courage to even do that. Yes. I think it takes courage to be willing to give up your own freedom because you want to end the suffering of someone you love.
Anyway....I'll probably bow out of this thread, as we are getting nowhere. You aren't going to change your mind, regardless of the evidence provided to you that hastening death in cases where the end of life is near, and the person is experiencing intense suffering is kinder than making them suffer. It should be their choice, not yours or mine.
We're not talking about murder, as in the case that I just mentioned or in the examples that you've given us. I see those cases as unrelated to this topic. I hope that if I ever need it, I will have someone compassionate enough to give me the option to escape a life that leaves me with intractable suffering. Of course, I'd rather die while I'm still somewhat independent, without much discomfort, wouldn't we all?