The right to an abortion is a states right, period, and yes it was expected most states would define and approve abortions, however, it was and never has been a constitutional right. Most educated individuals understand the distinction between federal and states rights, jurisdiction, then there are others whom never passed a basic civics test.
The majority of conservatives embrace the sanctity of life, yet the RHINOS and progressive liberals maintain the majority so individual states will approve abortions as they see fit.