I don’t think Hillary is going to be that hard to defeat. She’s old, ugly, and festooned with baggage. She has no charisma and her soul attribute is that it’s her turn in line. Bob Dole, McCain, Romney, and Gore were all a bunch of politicians without much whose turn came and sputtered out.
I doubt Hillary even gets the nomination.
She got derailed in 2008, and those same factions are working to do the same, should she run in 2016.