The pro-life/pro-choice argument seems to be, as it tends to be in many other cases, about where to place the Schelling point. Is all sperm sacred? Is Plan-B evil? Should a fetus with likely very poor quality of life be forced to develop, anyway? Should we take any and all measures to reduce the incidence of "natural" miscarriages? How much risk to the pregnant woman's life is acceptable in the name of saving her future baby?
The problem is that different Schelling points seem unique to different groups. When you say "(Pro-abortion is coherent if you are pro-infanticide", what you really mean is "I see no Schelling point past the conception stage", whereas someone else (like ZankerH) sees brain activity as such a point, or the heartbeat, or a fixed number of weeks, or birth.
There is very little difference between your position and theirs, except one number.
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?