Mr Miller, you mentioned Kübler-Ross and her belief that the last stage in dying is acceptance. Not this time, I think. It's understandable that most human beings, asked to believe that our species and almost every other form of life are almost certainly going to be wiped out, will go on denying it right up to the end. We won't get to the acceptance stage. You can't, Mr Miller, your last words say that "rewarding work"!
Unconsciously aware that the situation is hopeless, we will become more and more angry, frustrated, frightened and violent. More than now: it's hard to imagine, isn't it? But men are already lashing out: ISIS, Taliban, American police, rapists in college and the military and, here in the US, Republicans in Congress who refuse to change the gun laws and openly admire terrorists who murder social workers, children, doctors, anybody who is vulnerable enough to get at easily. Sorry, Mr Miller, people like you and me and most of the commentators on this site are going to have to admit that "the game's up" and find some way to accept, accommodate and do whatever we can to make our families, communities and the country as fair, decent and peaceful as we can. And go with dignity.