Just one relative minor point:

"We pack our elders off into homes to die, rather than keep and care from them with family, as was always the practice in the past and still is in other cultures. And humans are suffering for it."

I think it is far more nuanced than that. What you say is/was true to an extent in SOME cultures, but there have also been various Indigenous cultures who basically told their elders to "walk off into the woods and die" (though likely using more polite words) when they can no longer be productive enough anymore. Perhaps that was the ancient origin of the current "suicide forest" in Japan? Also, up until the 1930s in many Western cultures, poorer elders were all too often sent to workhouses that were every bit as Dickensian as they sound. So it's really a case of "pick your poison" in that regard. I would like to think that what we do today is at least marginally better than that.