How did/does pictures of the Holocaust affect you?
In the minds of many pro-choicers, bloody fetus pictures=anti-abortion extremism=abortion clinic bombers=crazies. And our popular media reinforces these stereotypes.
A woman in difficult circumstances considering abortion will block these graphic pictures out of her mind and avoid interacting with what she sees as self-righteous pro-lifers who have no understanding of how it feels to be in her shoes.
It is far better to show mercy for her and be approachable than alienate her and remove all opportunity for discussion.