All of your premises are detailed extrapolations where immortality goes wrong and doesn’t actually argue against the core issue: I simply do not want to die. I never will. Its not that I want to live because life is wonderful. I want to never have to face the horror of impending future non-existence.

I am arguing that not being allowed to die is a worse situation than being forced to die (as we are mortal creatures).

That obviously the heat death would need to be somehow mitigated, etc. but this is just arguing over pointless detail.

It isn’t though. You say you don’t want to die, but you’re also handwaving away what it means to not die. Its like you want to live in a limbo, but that isn’t a choice. What I’m getting more of is you’d prefer not to be human. I get that. We’re kind of miserable creatures even when we’re at our best, but if that is the argument you want to go with, then that is something else entirely.

Tell me that you accept the horrors of forced life as a human over a certain future of non-existence at some point, and I’ll take you at your word.