@nola
“TGM - So you agree that personhood is a completely arbitrary definition that we can make (at least it so appears). That essentialy means, that, for any reason, a living member of homo sapiens (in whatever state) can be defined to be not a person. I would obviously disagree with this (because I find the two to be inseparable) and I will also state that the belief that you can be human but not a person is highly dangerous.”
On the contrary, it is meaningful, but personhood is far more about having consciousness, a concept of past and future, reasoning, sense of identity etc.
Personhood is emphatically not the same as being a live homo sapiens.
As for your slippery slope argument, that doesn’t get away from the philosophical justification for what I am saying.
“And yes, human life does actually begin at conception. This was addressed quite clearly earlier. Neither a sperm nor an egg is a life; it is only a partial cell. Once the two are fused together, a human life is created. Whether or not this is a person is often debated, but whether or not it is a life is not so much (though I have nonetheless been arguing about it here for a bit). Again, though, if you think the government should not be allowed to decide who gets to live and die, then why do you think one individual should be able to make that decision for another without consent?”
If you say this (and I agree with what you say), you do have to reject the potentiality argument, because the potential to be born was present in the sperm and the egg combined beforehand. This means that your “healthy, possible to reach term” condition has just been contradicted.
"why do you think one individual should be able to make that decision for another without consent"
For the same reason I don’t resent the fact that my parents chose that I should be conceived in the first place. It’s a pretty big decision which I don’t remember being asked about.
“TheGhostmaker listed a bunch of different things to which I, again, referred to what I had presented before about the definition of life as being a human being in any stage of development. Things that are not human beings in a stage of development are not human life, and human beings in a stage of development that is not viable, while still life, do not have the ability to survive and can often kill the mother, so in that very specific particular circumstance, tough decisions have to be made.”
To be quite clear about what I am arguing, because it can be misinterpreted, I am attacking the claim that personhood begins at conception, and hence that the foetus is to be considered a person, and therefore is to be considered to have rights. My comments about cancers are not meant to create the straw man claiming that pro-lifers are in favour of letting the mother die.