Abortion - Why are people pro life?
This is a tangent. I have no problem with identifying an individual identity as a series of causally-connected spatiotemporal stages. The objection I have is in defining the "natural kind" (for lack of a better term) of "individual human being". This would have to be based on a well-defined set of necessary and sufficient properties, that unambiguously identify an object as either being one of these, or not. An object that can produce multiple human beings cannot possible be said to be an individual human being, even though it is commonly in the developmental history of human beings. The same is true of blasotocysts- clusters of cells, that may produce multiple human beings at several stages.
So my position is that an individual human being (i.e. an object of that type) is something that emerges. gradually during fetal development. I regard a properly functioning individual human being as a self-sustaining organism with certain physical and intellectual capabilities, including a sense of self. You can disagree, because there is no unequivocally correct answer. But you have no rational basis for denying me (or women) the privilege of deciding for themselves.
All objects that can produce multiple human beings are individual human beings. A mother, for instance, can do that. But this is also true of asexual reproduction. An individual amoeba, for instance, can produce another amoeba. Unfortunately (and oddly), we may have to think of one zygotic twin as the parent of the other.
I would never deny you or other women your privileges, but your distinctions are completely arbitrary. Worse, they are inapplicable to those with developmental disabilities, those who cannot care for themselves, and those without your favored set of physical and intellectual capabilities. At any rate, the reduction of humanity and dignity to that of “material” is the name of the game for anyone who wants to end such a life.