It's not just misogyny or sexism motivating opinions here.
There's lots of people who voted for Clinton or who supported her over Donald Trump who flipped on her after the election, mostly through revisionism, e.g., "If she ran a better campaign!" or "If we elected Bernie!" Those people may have supported Clinton up to the election, and maybe a couple of weeks after, but as reality set in, they've become critical of her. I'm not one of them -- I voted for Clinton because I thought she'd be a good president, and I still have a favorable opinion of her, but saying that all of those people who voted for her (the difference between her 49% plurality and the 61% disapproval) are misogynists or sexists is revisionism.
Many of my very liberal friends, who have been with, say, Elizabeth Warren since the start, still had a negative opinion of Hillary Clinton, though virtually all still voted for her. I doubt that they're sexist, or at least, that sexism is what informs their distaste for Clinton.
I'd imagine that this is more normal after a failed election, where a percentage of the base turns on the candidate who lost. That was the case with Romney for sure, as the far-right or tea party right became harshly critical of him after he failed to defeat Obama in 2012, and they thought a more conservative or conservative-populist candidate could have won. Romney only regained some general popularity when Russia invaded Ukraine and annexed Crimea a year after Obama stood up for Putin and Russia during one of the most watched television segments in the world.
