The best I've had in at least toning down the abortion rhetoric in someone I've debated with, is showing her the true definition of "fetus". Wait until she says, "It's not a baby. It's a fetus." Show her that "fetus" is Latin for offspring. I told her that her leftist overlords convinced her and her pals that she should kill her offspring, but not the offspring of the leftist overlords. You never hear them talk about aborting their own offspring. The political leaders are implementing a silent war against you, all while you think they're empowering you to fight someone else.
That gave her pause and she shut up her abortion rhetoric. She never came back and told me that I was right or that she's now pro-life. But it at least shut her up.
that was a great response- hopefully it was a seed that will spark some common sense in her later in life-