If a crime has been committed, there is a judicial system that can and will deal with that, with established standards regarding presumption of innocence and burden of proof.
What is missing is a suggestion for how you could avoid that. If business and institution are free to handle these things as they please, which they generally would be granted under labor law and free speech, there are those that are going to disagree with you and there are those that are going to be outright bad at it. Just like they are at handling a lot of other things.
If sexual harassment is as important as not being deemed "a team player" at a company or the right of colleges to design their own admissions process (sometimes to the detriment of Asian students) we can expect people to be mistreated, at the least subjectively so, for this as well.
You can certainly can judge those involved, but I think it is hard to make a case against the problem as such. Because if you have e.g. extensive rights for companies and extensive free speech, there will be downsides as society changes. But that is an expected part of the process, unless you want to change the process and thereby labor law and the rights of colleges or introduce something like the right to be forgotten.
I would probably agree with an argument, if you were to make it, that the punishments in some of these cases that are driven by the reaction of larger social groups are too quick and too harsh. However, it sounds to me like you're making a much more extreme case that I have to disagree with.
https://www.sfgate.com/bayarea/article/Police-domestic-viole...