I think you model Pro-Lifers incorrect. Do you know any dedicated catholics in real life? And yes, while it is a weird/artificial sci-fi tech, per definition unnatural, even people opposed seem to agree that the unborn child is innocent and did nothing wrong.
Anyway, I see more cautious interest for artificial wombs by anti-abortion advocates than by pro-abortion advocates.
https://www.washingtonexaminer.com/news/2579952/anti-abortio...
> “The term ‘artificial wombs’ is misleading about this technology,” Catholic policy expert Leah Libresco Sargeant told the Washington Examiner. “A [neonatial intensive care unit] incubator is already a kind of artificial womb, trying to provide some of the support the baby would have otherwise gotten from his or her mother. If we’re able to provide better support to extremely premature babies, I’m all for it.”
While my feeling currently is that pro-phoicers see it as a “threat to abortion rights”, because it challenges the viability standard. That alone makes pro-lifers want to embrace it! See a typical discussion here among pro-lifers:
https://www.reddit.com/r/prolife/comments/1886k8z/abortion_i...
> Artificial wombs are the easiest way to test if someone actually views abortion as simply ending a pregnancy or ending a life. Most of the time, PC don’t want to admit they support the ending a life because it contradicts all their arguments that abortion is simply ending a pregnancy.
> It’s the most pro-choice thing ever for us to give them a solution that should be a compromise between our viewpoints, and them to still whine about wanting to kill their babies instead.