Is there something about Southern politicians that makes them so opposed to measures to prevent women from birthing too many unwanted babies?
When George H. W. Bush was in Congress in the 1960s, he was a very enthusiastic family planning advocate and a group of mostly Democratic Southern congressmen used to call him "Rubbers" behind his back as a result.
Clearly this is not a recent development that can be blamed on Tea Partyism.
Meh, I chalk it up to the South's long history of entrenched social hierarchy and control.