of abortion in at least some cases...in short, it's because they realize that carrying a pregnancy to term under certain circumstances (e.g. rape, incest, health (both physical and mental) of the mother) is too much of a burden for the woman...
The removal of legal abortions does NOTHING to address that burden...it only forces women in such situations to seek harmful illegal abortions...which they will, as demonstrated by the Pre-Roe v. Wade situation...so, by overturning RvW, you and others are demonstrating complete and utter disregard for them...you offer them no choice.
Link: https://news.gallup.com/poll/1576/abortion.aspx