@Hieronymus's banner p

How can you argue from Christianity and also argue the fetus is innocent? It has as much expected original sin as you do.

Original sin perhaps, but not actual sin. In any case, the child is obviously innocent of any offence that would justify his death at human hands.

How do you believe in the hereafter and still attach so much sentimentality to the body here and now?

There is a sense in which it's worth weighing temporal things against eternal ones. But, ironically given the question, Christians usually apply that principle to endure the suffering such killings are meant to avoid. Death in this fallen world is sometimes a divine mercy, but there are only a few situations where men are entitled to deal it out.

I don't know if I've managed to get at the underlying disagreement here. It's not a matter of weighing utilons.

There are many examples in the Bible of God commanding people to kill.

Agreed. I am not a pacifist.

Murder is a particular type of killing that doesn't seem to apply to voluntary euthanasia or abortion of people who would not want to live anyway.

Why not?

(As an aside, the discussion started with the abortion of a Down syndrome child, and Down's patients usually do not want to die. But the principle is worth discussing anyway.)

Pro-lifers are framing the debate correctly, but they have the wrong answer.

Could you unpack that? My tentative reading is that you agree that abortion is the killing of an innocent human being but that you also hold utilitarian principles which allow that sort of thing.

Of course most pro-lifers are not utilitarians, and I'm no exception. I also have a relative with Down syndrome, though not so close a relative as your brother. He is blessed with excellent parents. But if they had killed him in utero they would be no less guilty of his blood than if they killed him today.

People think they can find pragmatic, utilitarian compromises with reasonable stopping points. But over the generations things don't work out that way. Rare abortions in difficult cases became abortion on demand, which greased the slope for doctor-assisted suicide, and the Netherlands and Canada are showing us how that goes.

There's now a whole social media genre of posts acknowledging that the socons were right and slopes were in fact slippery. People had believed that they would handle this or that loosening of the moral law responsibly because their culture took the issues seriously. But the culture only took the issues seriously because of its residual Christian understanding of the moral law, which that loosening eroded.

To the Christian this sounds a lot like the situation in Romans 1, where men denied God despite their knowledge and he gave them over to their sinful desires. But, Christian or not, experience shows that utilitarian principles won't hold you on the middle of the slope.