2) They couldn't admit they made a mistake choosing Biden, and waited too late to make a change
3) By the time they realized they couldn't hide Biden's condition any longer, they chose Harris due to the $200 million they had raised for Biden already. Nobody else could tap it.
4) Because they are prideful, it kept them from realizing this is the sunk cost fallacy. It's doomed many before, and they fell right into it. Anyone else would have gotten more votes than her.
5) Harris is un-electable. Nobody likes her as she is the supreme DEI hire. She never earned anything, just made it through life by knowing and bl*wing the right people. She came from too extreme left of a city and could never appeal to a broader base needed to get elected. She either changes her beliefs and ticks off her left base, or sticks to her extremist guns and ticks off the central base. She was stuck.
6) Having twerking rappers at her rallies didn't help anyone take her seriously
7) Having a lot of people feeling hurt economically and ticked off about men in the girls bathrooms didn't help either