Don't forget the stakes here. If Kavanaugh gets appointed, SCOTUS will arguably shift to the right. Roe vs Wade could be overturned (which doesn't end abortion, it brings the issue back to the states, but that's another topic), and even gay marriage could be challenged. I believe some liberals are capable of attempting a fraud to prevent this appointment. I appreciate what time4fun is saying about false sexual assault accusations being rare, but this situation isn't normal.
I believe Anita Hill attempted a fraud in 1991 to stop the Clarence Thomas appointment and failed. Is the current accuser a fraud? I don't know. If she is a fraud, I hope you are correct that she will be discovered and discredited. And if it is determined that she is telling the truth, I hope Kavanaugh's career in the legal system ends immediately and whatever charges that can be brought against him are made.
But IMHO the most likely result is that no definite conclusions will be drawn. Guess we'll see.