"I don't think acknowledging sexism/racism/misogynoir etc among voters is the same as blaming it on the candidates."

Absolutely.
Acknowledging -isms is the first step towards changing those -isms.
The next step is changing prejudices and bigotry, not actively accomodating hate by blaming the targets of hate and excluding them (us) from society.
Fascism is based on exclusivist Us versus Them thinking. Anti-racism and social feminism are two of the best ways of challenging fascistic Us versus Them thinking (as are collective action groups such as Trade Unions).