If abortion is right, hypothetically, why is any murder wrong?

Question

If abortion is right, hypothetically, why is any murder wrong?
The way I see it, either you believe in a soul or you dont.

Answer

So if it is not morally wrong to kill an unborn child, why would it be wrong to kill any other person?brbrIt would seem that the obvious answer to that is a fetus is not any other person.brbrIn fact, the only way the original question is not a category error is if there is some quality that we believe a singlecelled embryo and an independant adult human have in nearly equal amounts unless you are considering wrongness as all or nothing, I suppose.brbrPhrased that way, I dont think its hard at all to imagine other standards which would clearly treat the two as completely different.brbrAn extreme kind of Marxist, for example, might argue that the labour value no pun intended of a fetus is zero or even negative, while even children can produce some work. So killing the unborn is no big deal, even though killing adults is.brbrNor is it hard to imagine a utilitarian being ok with it. Giving people unwanted children probably makes both the parents and the children unhappy, so its better to avoid that situation. The difference in this case being, of course, the degree of social interconnectedness its hard to get rid of adults in the same way because their friends get upset.brbrAnd for the record there are religions which do not hold that the soul enters at the moment of conception. Some associate it with quickening when the fetus begins to move, and some set dates after conception. Of course none of us can absolutely demonstrate the presence or existance of souls, so these arguments are hard to prove... I just wanted to observe that there is difference of opinion even in this point.brbrThe problem with have with ethics is that what, exactly, is necessary for a good life seems to be a matter of protracted debate. Although we can objectively measure the kinds of behaviours that generally make people happy or productive or longlived overall, there is little guarantee that any particular individual will benefit. And conversely, we might objectively measure things that make a single individual happy, but have no guarantee that it would be salubrious for any other.brbrSo maybe the most accurate thing I can say would be If you provide me with objective evidence that killing the unborn is wrong, I will probably be able to provide objective evidence that demonstrates whether killing other person is wrong. Lets all adhere to the same rigor of proof!