Naive

 

Um...

 

I would assume it's because if voters don't see abortion affecting them personally, they won't change their vote regardless of what they think about its legal status.  

I would guess that it may take some high profile case (or cases) of women dying due to inability to get an abortion under new State laws to change this.    

Update:   I don't know - it's possible I could be wrong, given the enthusiasm with which some Red States are coming up with new ideas in anticipation of Roe going:

Mississippi Gov. Tate Reeves (R) on Sunday refused to rule out the possibility that his state would ban certain forms of contraception, sidestepping questions about what would happen next if Roe v. Wade is overturned.