Who behaves as if their future doesn't have a value while knowing that it does?
Depressed people. Melancholics (i.e. me).
Who behaves as if their future does have a value while thinking that it does not?
Me. A lot of the time. The rest of the time I think my future has some value, if only to me and a very few people, but I recognise that with relatively few changes to my past, it could well lack value to me, and everybody else - there are countless scenarios in which any given person's future would become of relatively low value, the most glaring being the old run-over-by-a-bus point, a more subtle one being the otherwise rational individual who has decided that life has no intrinsic meaning or value, has no surviving friends or family, and whose personal financial, employment, recreation and domestic situations are all poor by accepted standards.
Getting as far as foetus-hood is no guarantee of a "valuable" future. Personally, if I could cease to exist, painlessly, without causing serious upset to other people, at the flick of a switch, I would. Call me lazy, but I'm looking forward to non-existence, and I seriously doubt the world would miss me in the scheme of things. Not as much as Mozart, and "so?" would be my answer re him as well. The whole argument makes no sense, since the logical conclusion would be for all of us to shag like rabbits 24/7 to avoid any wasted eggs and sperm. You wouldn't want to waste any opportunity or raw biological material, no matter how limited in viability. See
Monty Python and/or Catholic dogma for your PoV taken somewhat toward its logical conclusion. Actually, without religious objection to cloning, you'd want to start trying to perfect that too; after all, if you don't, you're denying a valuable future to a hypothetical batch of
nipple-necks.
Someone expressed this whole mess well in another thread - it's down to squeamishness and what we, as a majority of society, are comfortable with. By my estimation, if you haven't begun experiencing anything and have no kind of bond or influence upon the world beyond being an amusing bump in a lady's tummy, you're fair game. And as skeptigirl, who as a rule talks lots of sense, says; until the baby is at least a viable autonomous humanoid, it's part of the the mother. In fact, I would go as far as to say that until that thing is out, it's
still part of her and could still be bumped off. But by that point it would be recognisably human, and few people would feel comfortable with killing the child/parasite/build-yourself-a-person-kit. That's fine, I understand that completely. But it isn't objectively morally wrong to end its life as far as I can see.