Codo, on Aug 17 2009, 09:43 AM, said:
I am sure you and many others see it that way. But to me, it is not canonical that it is wrong to kill humans. Morality is based on concrete scenarios. It would be wrong to kill Alice (in her present condition). It would be wrong to kill Bob. Etc. So a pattern emerges - Alice and Bob are both Humans so there seems to be a general rule that it is wrong to kill humans.
But it does not follow from that rule that it is always wrong to kill any human. It is the other way round - the rule follows from the particular cases.
Why is it wrong to kill Alice? Or Bob? To me, it is because if we did not offer them guarantee that killing them would not be condoned, they would live in constant fear. It would be bad for them, and it would be bad for society as the fear would impair their ability to function as members of society.
Also, if they got killed their loved ones would miss them.
Do similar arguments apply to fetuses? Only to a tiny extent. I think the father and maybe other family members can feel emotionally attached to a fetus, especially in late stage of pregnancy and/or if some information about it has been obtained through scanning.
This is not to say that I consider abortion unproblematic. I know several examples of women who had been put on pressure to have an abortion while they wanted to have the baby. I wish people would realize that to some women/couples, abortion means killing their own baby so their desire to have the baby should be supported no matter how "irrational" it may appear to others. Fortunately, I think almost everyone understands that. I was just brought up in the militantly pro-abortion 1970's and have therefore become somewhat allergic to pro-abortionists.
To me, first principles of morality include stuff like "people* should not live in fear" and a lot of other principles. These may be just as arbitrary as "one should not kill humans". Fair enough. But I don't think it is good reasoning first to introduce a rule which depends on the vague term "human", and then make its scope dependent on the definition which is later to come: Is a fetus a human? Is a half brain dead person who has lost all cognition but is still able to control heart and lungs a human? Are chimps human? Those are just semantic issues. But whether it is morally acceptable to kill a fetus, is a real issue. It does not depend on semantics.
*This also begs the question what "people" (humans?) means, of course. In this context, it may be any entity capable of feeling fear, i.e. probably extending to many animals although we can't know that for sure. But that's another discussion.

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