I don't why people are bent over the woman president prediction not happening. It has almost nothing to do with it being a female candidate, and way more to do with actually having a quality candidate, hence why it's still a 66% "Will have happened".
Obama actually wasn't the DNC favorite, but he had a popular campaign which is why he succeeded.
Hillary and Kamala's campaign can be summed up as a flaming pile of garbage that wouldn't have made any difference in polls had they been males.