Ed Kilgore has a useful note about the Evangelical love of the anti-abortion position, one he finds a bit at odds with the character of evangelical thinking itself, as he explains
It’s always fascinated me that by contrast American conservative evangelical Protestants have come to be if anything more extremist on abortion than Catholics (certainly in terms of rank-and-file opinion) without any of these factors: they do not regard Church traditions as dispositive, have been lukewarm or hostile to “natural law” as a foundation for doctrine,
He goes on to link to a very interesting article in Religious Dispatches by Jonathan Dudley. Broadly the history seems right, but then…
Speaking from the Evangelical side of the aisle, the article misses some of the major aspects of Evangelical support for anti-abortion. While Evangelicals of the South certainly framed it through their battles on civil rights (there’s a long, long history their among the S Presbyterians especially, now in Presbyterian Church of America), in the Upper Midwest, the Evangelicals were often members of immigrant based churches. Their reaction was shaped far more by the cultural battles over the ERA. There is also within these communities a large consensus on the justice side of the issue — these communions were one of the homes for the Pro-Life Democrats.
Also, within these communions, Francis Schaffer did have a pull, not because of this last film, but because of a generation of work in Europe. Many young Evangelicals found in him the first person who seemed to possess a cultural engagement. Whatever his flaws, at L’Abri he pioneered a vision of Evangelical thinking that inspired a number of evangelical and non-evangelical scholars. His film had impact because of his previous brand, as it were.
Among northern Evangelicals (well, at least in here in Michigan), the decisive push to a more radical position takes place in 1988 and Pat Robertson’s primary run. This was the contest that showed the political potency of the Right to Life, from that point on, that was the beat that the Evangelical Right had to move to (also note that the Evangelical Left, prominent in the late 70s had collapsed — another story).
Finally, we should probably also noted the impact of the change in abortion itself, from surgical to medical, and with it a shift to earlier abortions. The violence of the abortion methods in the 80s played a role in fueling the Evangelical stance. In that light, the Evangelical adoption of the metaphysical fundamentalism of the Catholics represents more a political alignment, and a lessening of the community’s early horror at the practice and with it, a concern for justice.