Aimée Thorne-Thomsen from the Pro-Choice Public Education Project says that making abortion "rare" isn't the point. On the standard pro-choice view, I think she's right: Abortion is like having a tonsillectomy -- morally untroubling. As many people who want or need one should have one. No one says we should work to reduce the number of tonsillectomies.
On the other hand, if it seems to us that there should be less abortions -- if, as pro-choice politicians (such as President Obama) like to say, we should work to "reduce the number of abortions" -- then perhaps there really is something wrong with abortion.
And if there's something wrong with abortion, then it seems strange to nevertheless consider abortion a "fundamental right" (as Obama and other abortion supporters do), a practice we should allow for any reason, at all times, and even fund with taxpayer dollars.