Pro-abortion isn’t accurate, because no one has an abortion for the fun of it. Sometimes people choose to have abortions because that’s the least bad alternative they have, so we want to preserve that choice. Hence the term pro-choice. “Anti-choice“ is somewhat inaccurate, because those so designated are only against one particular choice. But “pro-life“ is inaccurate because it applies to everybody who hasn’t committed suicide. probably the most accurate label is “pro-forced birth“.