If you ever wondered how it came to be that people loathed and despised Hillary Clinton on such a visceral level, this is how. They did this over and over and over again for eight years screeching about “the rule o’ law!” and calling them the Clinton Crime Family. It’s very effective. It makes people who don’t have strong feelings about the person or knowledge of the facts figure there just must be something to it. In the face of Trump’s obvious criminality, it also has the effect of feeding into the cynical “they all do it” attitude which leads to apathy.
The Republicans spent decades degrading Clinton and it was only by a fluke that she lost the election in 2016. And, yes, misogyny played a part. But the constant drumbeat that she was a criminal going all the way back to the 90s took its toll and Donald Trump, the instinctive asshole that he is, took advantage of it. And too many Democrats and independents bought into it.
Luckily Biden is an incumbent president and Trump is going to be on the ballot so those dynamics are not going to be very strong. But never think it’s just a reflexive reaction to the charges against Trump. This is a patented GOP strategy. Character assassination is their go-to.