One could argue that the proportion of medically necessary abortions after 16 weeks would be higher. And it probably would be. However there’s no indication it would be so high as to constitute even a majority of late-term abortions, much less “nearly all” late-term abortions.
In Arizona, since 2012, 91% of 14-20 week abortions & 80% of 21+ week abortions have been elective.
Similarly I found some Florida data. Unfortunately they lump together 13-24 weeks. They also have some pretty broad definitions of “non-elective.” In addition to life endangering conditions to the mother and serious fetal medical conditions, Florida considers abortions for the following reasons “non-elective””
- Emotional/psychological health of the mother
- Physical health of the mother that is not life endangering
- Social or economic reasons
Including “economic reasons” in the definition of “non-elective” doesn’t mesh at all with the pro-choice claim that late-term abortions are all medically necessary. But let’s just pretend it does. Even if we include all these reasons in the “non-elective” category, the numbers still don’t support the pro-choice claim.