Human beings have virtually no value if they are just machines

[Whateverist]

I still do not know what alternative to mortality you think is so important. No such thing exists. So far as I can tell, we left immortality behind when we became multicellular and sexual. I wouldn't want to live forever as some kind of amoeba so such an alternative is of no interest.

Perhaps it is the fantasy of an unending life that you have in mind. I can't imagine getting worked up about the possibility that reality will confirm to what one imagines.