And there's a coherent position of "the line needs to be somewhere and birth is the Schnelling point, so I'm contingently pro-abortion but anti-infanticide, pro tem". But I don't think many pro-abortion folk would endorse that position.
There's at least one. Actually, I thought this was the obvious answer even before I knew what a Schelling point was: there's no clear point at which humans become sapient and it probably isn't a binary issue, but the line needs to be drawn somewhere, putting it at conception implies a lot of nasty tradeoffs, and so we might as well put it at the other big obvious developmental transition.
(There are smaller and less obvious alternatives, of course. One's the viability standard that's usual in the US post-Roe. Another is the point of "quickening", when fetal movements become obvious to the mother, which has seen historical use in this context. And then there are various developmental stages post-birth, as are used in many older cultures to mark when to name the kid. I think these are all substantially worse Schelling points as things stand, but you could make an ethical case for any of them given certain assumptions or additional data.)
In the big survey, political views are divided into large categories so that statistics are possible. This article is an attempt to supply a text field so that we can get a little better view of the range of beliefs.
My political views aren't adequately expressed by "libertarian". I call myself a liberal-flavored libertarian, by which I mean that I want the government to hurt people less. The possibility that the government is giving too much to poor people is low on my list of concerns. I also believe that harm-causing processes should be shut down before support systems
So, what political beliefs do you have that don't match the usual meaning of your preferred label?