> If it's not necessarily true that anesthesia is death, why should it be necessarily true that mind uploading is death?
I think you guys are saying the same thing… Mind uploading is a duplication process, like a fork. The emulated mind has continuity with the original, with possibly some small gap, so yes it's exactly the same as for anesthesia, sleep, etc. they didn't "die" in the process.
But now there are two different entities that have continuity with the original branch. Both can subjectively claim to "be" the person that initiated the procedure. What the grand parent is saying is that the variant that stayed in the flesh is not magically synchronized with the emulated one so they don't have any incentive to suddenly kill themselves just because there happen to be a fork moving on on a different substrate.
There are now two people sharing the same memories up to the fork point, and diverging afterwards. Neither of them should be killed without their consent and neither of them should have any a priori will to kill themselves.