Why specifically abortion? I mean with regard to other items you listed, it's a lot more specific topic, and it's part religion and part politics anyway.
It can also be about personal trauma of various kinds. Like abortion come about because of pregnancy brought about by rape. Or abortion gone wrong. Late abortion. Abortion come about after difficult decisions. Forced abortion. Wanted abortion but could not get one. It just goes on.
I imagine that people can feel that it is wrong, without it beeing linked to religion or politics.
Note: I do not share the idea that abortion is wrong
or they couldn't come up with a better A, and RPE just doesn't have a same ring to it.