If Merrick Garland had become a justice rather than Neil Gorsuch I have no doubt that Roberts would have voted with the liberals for a 5-4 loss for us.
If Bork instead of Kennedy made his way to the Court, it is likely (but not entirely a given) that Casey would have overturned Roe.
But, Bork was weak on the 2nd Amendment and it's plausible that the Bork vote on Heller would have NOT been favorable, i.e. made it 5-4 that the militia clause makes the right to KABA a collective right.
Bork died in December 2012, and starting in January 2013 the Dems had a 55-seat majority. That means Obama's would have likely replaced Bork with that psycho Garland.
Net, net, net, notwithstanding the evil of abortion going longer than it should have, getting Borked and living with Kennedy who was replaced with Gorsuch is a Godsend. Yertle is a RINO jack wagon, but this all may have landed in a happy place.