Underestimating your enemy is a major mistake and I think y'all are grossly underestimating the number of "moderate" women that would pull the trigger for her just to see a woman become president. She'd get way more support than Hillary did because Hillary may be the single most dislikable person on the planet.
It all comes down to the "moderates"........there are a bunch of people out there who don't like Trump but would vote for him against Biden because they recognize Biden is a walking corpse. But if someone is put up there that checks some of their boxes (black, first woman, last name = Obama, etc), I think that would be enough to sway them.
I'm not sure they'd even need to steal it at that point.
Unfortunately you are correct