To call a fetus a nonperson is completely distant from self-evidence and intuition. If there were not a stake in abortion, no one would argue the stance (hence laws that judge the murder of a pregnant woman as two murders).
In the name of consistency, would you consider that a woman who is found to have performed an abortion on herself is guilty of first degree murder, and should face the penalties normally imposed for first degree murder?
I personally haven’t heard of any pro-lifers advocating that a woman who performs an abortion on herself should be given life in prison, or possibly a death sentence. I am not sure what to make of the fact that, though they believe that abortion constitutes the deliberate killing of an innocent human being, it should not incur life in prison. When abortion was illegal in the United States, I believe the potential incarceration penalty was measured in months, not in years.
My own view is that the criminalization of abortion is tantamount, in terms of enforcement, to the criminalization of suicide. A woman’s pregnancy, for one thing, is not visible to others for the first 12 weeks plus. It is a secret that she carries about with her, possibly a secret even from the man who impregnated her.
Regarding suicide, we try to persuade people not to do it, even though we acknowledge that there is little we can do to stop them, and even though the criminalization of suicide – though I think it exists, this idea of being arrested after a suicide attempt – is not feasible.
Then, as mentioned above, there is the fact that no one seems willing to impose life in prison, or death, on a woman guilty (say) of performing an abortion on herself.
On some level, even by pro-lifers, there is a recognition that abortion – the deliberate termination of a pregnancy, a deliberately induced miscarriage – is not of the same nature as killing one’s child after he’s been born.
Regarding twisting logic to justify killing, though, it is fair to point out that this was the reason for Tolstoy’s rejection of the Russian Orthodox church, as it was one reason that Quakers and Anabaptists (forerunners of the Amish) rejected Catholicism – because they could not justify killing in the name of warfare, or criminal justice. They were against abortion, war, the death penalty, all of it. As one commentator puts it, “when Christ said ‘love your enemies’, I’m pretty sure he meant don’t kill them.”