If she were just yelling about how awful Trump is, I'd get it. If she were out there, every day, complaining about Comey, I'd understand. If she were ONLY furious that women didn't show up to support her, there would be an internal logic at play. I wouldn't agree with any of it, because Hillary Clinton lost the 2016 election simply by being awful, but any of those excuses would at least make sense to me.
Instead, it seems that Bernie Sanders - a man who endorsed her and campaigned for her - has emerged as her favorite target.