I've been spending the day reading up on the history of abortion and related issues. I fell upon this article that shows that the modern-day pro-life movement is the successor of a long-standing societal concern for unborn life.
Pro-aborts have been successful in spreading a number of myths about abortion. For instance, it is commonly asserted that opposition to abortion was not based on concern on fetal life, but on a number of facts, such as opposition to contraceptive sex, the desire to control women, etc.
Pro-lifers need to engage pro-aborts in academia through writing. I heartily recommend that you read the article. We should promote this kind of writing.