Abortion protesters are motivated by church sponsored, church sanctioned sado-porn.

They can’t think about sex, because that is a sin, so they can’t think about penises and vaginas directly. But they CAN think about the womb, the unborn fetuses, and what they imagine are the mutilations and pain that a fetus undergoes during an abortion.
Since those topics indirectly deal with sex, their sexual responses are engaged (engorged) physiologically, but they aren’t technically thinking about sex, so the Church encourages it. This is the same process that happens in sexual perversion. Dwelling on the lurid details, minutely considering the graphic images, imagining the feelings of the participants over and over again and describing the processes to each other in rapturous, florid phrases.
This is all pornography. When you add the descriptions of the blood, the violence and pain, it becomes sadistic pornography. It is how they get their sexual jollies because they can’t think about sex directly. This is where the emotions and vehemence come from for the protesters. It is repressed sexuality, that allows them to think about and imagine sexual topics – pornography – that are sanctioned and encouraged by the church. Church promoted, church sanctioned pornography, so it’s ok. Except it’s not.