Let us take the hypothetical one step further. Suppose I live in a country where unborn homo sapiens are not considered human. Suppose my laws forbid the eating of human flesh, on the ground that it is cannibalism. I go to an abortionist, find a baby who is only halfway out of the womb, coming out feet first. The abortionist drives a pair of scissors into the babies fragile skull, and suctions out this brains. I take the rest of the flesh home and cook it up for a meat sandwich. Michael Valentine Smith and Hannibal Lector come by and eat with me. A little tiny perfectly formed baby hand sticks out of one side of my sandwich as I wolf it down.
Is my action legally not an act of cannibalism, on the grounds that what I ate was not a human?
Personhood is an excuse
John C. Wright on "aborticide." It's a bit graphic, but it's a graphic topic.