Yes he did. But that is the purpose of the public nomination so he can be vetted. The vetting has brought about enough questions that such credibility is in doubt. There were questions beforehand about whether he might have other issues because of prior acts (most notably lying under oath) and this just adds to that.
And look, you are right it is always possible this is all BS (I personally know someone who faked being raped cause she cheated on her BF and knew she would get caught) but as we always tell you each of us has our own standard of proof. All we can all go on is what each person said and decide who we feel is likely telling the truth. In the end we may be wrong but if enough people can honestly say they dont trust him to hold this post he shouldnt.
The ultimate problem isnt that the Dems are tearing this guy a new one, it is that the GOP made sure he wouldnt have enough time to mount a defense. If they werent in such a hurry he could fight back. If he is innocent he should be begging for as much time as possible to refute these claims and clear his name. He isnt getting that because the GOP wants this done fast. Any credibility he has is shot because the GOP wont even let us see who Kavanaugh really is. They sealed his record, they blocked all witnesses...they just put him up and left him out to dry. He looks shady from the word jump because we know very little about him outside of his time investigating Billy and working for Dubya. We have 7% of the total story and it doesnt make him look good. The GOP made it look like he has something to hide which now is corroborated it would seem as these stories come out. He should sue them for malpractice...
Of course, I think he is a pig who did everything he is accused of but I acknowledge I could be wrong.