It wasn’t the mere accusation that should have disqualified him; it was that the accusation wasn’t thoroughly investigated. Even the travesty of justice that was the Clarence Thomas hearing looked like solemn due diligence in comparison.
And the accusation aside, the way he comported himself in the hearing should have disqualified him — according to former Republican appointed Justice John Paul Stevens and 2400 law professors and a large percentage of the American public.
Three women accused him, and they only talked to one of them before barreling ahead. That’s a huge miscarriage of justice! There is no obligation to actually consider someone innocent in the face of probable cause. That term “innocent until proven guilty” only applies to who has the burden of persuasion in a trial situation.