As a woman who helped facilitate her previous partner's suicide at the end of a 30 month tongue cancer ordeal (a suicide that was not formally sanctioned or assisted by the attending physicians, but was unofficially attended by the hospice nurse) I feel drawn to this conversation. On the other hand, I believe that this question is so much bigger than most people can even begin to imagine, that I feel repelled by it.
As I see it, based on the ->-bleeped-<- storm that I faced after helping my partner kill herself, what you're suggesting, Adam, would require nothing short of a cultural shift 100 times bigger and more complex than the shift in consciousness that has taken place over the past 40 years or so that has brought about a measure of acceptance for the GLBT community (such as it is.)
How do I feel about this subject personally? I believe that all life is meaningful, regardless of how it looks to those who may be observing it, or even how we feel about it as we live it. Life in all of it's manifestations contributes to the growth and evolution of all that is. (Another huge subject.) I believe that ending life prematurely is a mistake of the highest order. And I totally acknowledge that there's no way in the Universe for me or anyone else to concretely quantify that perspective. All I can say is that it's true for me. I told my partner that exact thing before she took her life, and in spite of how I feel about this subject, I helped her anyway... because I loved her with my whole heart. I would do it again.
Even with laws in place for physician assisted suicide (as we have here in Oregon), the ramifications of shattered families, the issue of post traumatic stress for those involved who remain living, and the justifications required for letter-of-the-law questions that most definitely arise from case to case (with the very real risk of long term prison sentences hanging in the balance for all involved), are all very real potential consequences that won't go away.
In a nut shell.... there are no easy answers to this question, and there almost certainly will not be in our lifetime, or even our children's' lifetimes.
Peace,
Miharu