I have to agree with wanting at least one happy ending, or at least a smidge of hope and dreams that your V won't end up dying after six months. The possibility of survival. I love how gritty this game is; it's dark and horrific. Death is part of every day. No one escapes it. Yet the problem that I have with how the endings come into play is all of them are the same result, an untimely death no matter how hard you fight.
You're doomed as soon as act 2 comes into play, to the point that you dragging yourself out of filth is pointless. Again, wouldn't bother me if the game wasn't heavy on V trying to survive, they're giving it everything they can. They don't want to die, and yet there's no way, shape or form for them to survive.
This doesn't make sense to me, in how the game plays out. Out of all the endings, you're telling me that not one of them rewards you for your hard work? Not a single one. There is no happy ending where you make it, where you live it up for Jackie, and have a happy life with your romance.
In this world where you can swap out the entire skeleton, swap your tendons for chrome and fibre wires, rip out your eyes and replace them with new ones, get a second heart, completely have your nervous system redone. How is it that somehow replacing half a human brain, or at least creating a second chip that doesn't 'devour' but instead heals or acts as the 'brain' while working with the 'meat brain' in unison, isn't possible? It is not beyond the realm of possibility here. Freaking Maelstrom walking around with half their meat removed, including their frontal lobe - yet they're not on a six-month ticking time bomb.
It should definitely be within V's grasp, or a V who made all the connections has links and connections. Everything! A player should be rewarded for going beyond the scope and have this option available to them. Heck, even if it's hinted that it might not work, but there's a chance, it's something.
TLDR: The option should be there for survival for those who go out of their way to achieve it. As it is now, I am not rewarded for my hard work. I'm punished and leaving behind grieving friends and loved ones. I may as well have died with Jackie.
P.S People alive right now can survive with half a brain. These people were even born that way or suffered trauma—headshot wounds, lessons, etc.