As a society we need to have a much more sober response to this sort of allegation. Immediate career-ending consequences based on a mere accusation are ultimately bad for both accuser and accused, because it raises the cost of making an accusation.
We've reached this place in part because formal avenues of responding to harassment are so terrible. A lot of harassment cases involve sexual assault or other crimes, but the police and the courts are often so indifferent or hostile that they cannot even come close to fulfilling the role they should. Improving how the criminal justice system handles such crimes would be a big help, but it's a monumental task.
Similarly in cases of violence, from battery to murder, has by coincident also a total of 9% clearing rate.
In both, the main argument why its so low is neither hostility or indifference. What is cited is the lack of evidence where most of the time investigations only have words against words. It is really hard to determine who punched and who defended themselves outside a bar if there is no witnesses. Both the accused and defendant admit to be in the fight, and there is medical records to that, but details like who made the first punch is unclear. Similarly, its hard to prove the punishable part when two people have sex and both agree that it happened but one say they did not consent. Medical examination can prove the intercourse but rarely much more.
Technically the court can choose who they want to believe purely based on oral statements, but as a matter of practice they tend to not make such decisions. When courts still do it they tend to get overruled later on. It is not clear how you can improve criminal justice system to get anything above 10%, and 1 out of 10 cases is so little that victims will never feel like the legal system is working.
The only way I can think of that would actually fix society so that we can reasonable expect cases of violence and sexual violence to be solved is if surveillance became 100% in every bed room and every corner of society. Its a hefty price to pay for holding all criminals accountable for their action.