IMO the fact that Harris is a black woman meant this was always going to be an extremely uphill battle. Someone like Harris winning would be completely unprecedented. I'm not surprised she lost, but I am disappointed.
Edit to add: I now think that. It isn't what I expected to happen until the results actually came in last night.
Lots of things are foregone conclusions for a long period of time before you have the data to know it.
Think: A competitor is working on a product that massively outcompetes yours, but you don't know that until it is launched. Or you have cancer that is progressing but you don't know until it is diagnosed.
I think this turned out to be like that.