Let's review the bidding here. Somebody said "death is a medical failure." I said that it isn't; when you fail to achieve an impossible goal, the failure is in the goal, not the work done. I went on to say that all composite things decay, and that to expect that one is going to be the first exception is folly.
I agree that few people imagining they can have eternal life think that they will suffer. But that's exactly the problem. They haven't thought it through. They don't yet understand what life is. Which is why they are so woefully unprepared to handle the parts that don't match their fictions.
The bit about Shakespeare's sonnets I take to be a counterargument to "all composite things decay". That we have managed to keep 100k of text around for less than half a millennium seems like poor evidence that immortality will soon be ours. People die. Species die. Planets and suns die.
Okay. You do not value death, but you do not believe we can defeat it either. Note that in a strict sense, the second law of thermodynamic says you're most probably right. All there's left is a hope of a very long life. (Which you probably don't think we can achieve either, right?)
It's a long way to go, or at least a very long shot, but a long life is possible in principle. Things decay, but they can be fixed or replaced (even the brain: current physics says that copy-paste transportation actually works —in principle). We just don't know how to do that yet. Now, about my personal immortality, I see little hope short of Friendly AI or cryonics, and even those are a long shot.
I agree that a long life is theoretically possible. I personally suspect that even if we overcome the body problems, neither human brains nor human minds will be able to cope with that, so that anything truly long-lived will be a post-human organism.
I also agree with you that the various theoretically possible techno-miracles likely won't mean much for us than a modestly longer old age. So I think everybody should really come to grips with what dying means. E.g., by filling out a living will and discussing end-of-life issues with family. If it turns out that preparation is wasted, I don't think anybody will complain too much.
Shakespeare's sonnets are artfully composed, and I'd say we've done a decent job of keeping them around and finding uses for them.