How excellent of you to redact the most damning part of your quote of the initial accusation, that literally says:
> He kept the door to his office open, to proudly showcase that mattress and all the implications that went with it. Many female students avoided the corridor with his office for that reason
Now go ahead and tell me it's a coincidence you kept that part out, and it was probably not a big deal, and they were all exaggerating in some inexplicable coordinated effort to be disturbed.
So your arguments basically consist on half-quotes, "it happened long ago, so it isn't true", "unsubstantiated; since there's no recordings of it, he probably just said something nice and was misinterpreted yet again" and "maybe that happened, but since I, a man, who'd never be targeted by his sexual advances, think it's ok, it's ok", completely disregarding the fact that all these accusations have been corroborated by witnesses, ranging from people interviewed on several media and dozens of reports and online comments from people who claim to have worked with him over the years, let alone the several unrelated victims of his "urban legends", and most of all, the fact that people repeatedly let him know about his attitude and he didn't give a damn.
In short, yet another big, somehow coordinated witch hunt by overly sensitive SJWs.
You also don't get ahead if you there's a perfectly valid reason outside of your control that prevents you from 'getting ahead', or makes it extremely unlikely. Most dictionaries would call those 'excuses'. And you especially don't get ahead if those valid reasons exist but are seldom discussed by the people with the most power to solve them, and are instead often reduced to 'excuses', 'lazyness', or any other straw man, like the one you're complaining about.