This wasn't his main accuser Christine Blasey Ford, it was one of his several "side" accusers who never became prominent because they were all non-credible from the start and nobody believed them.

Christine Blasey Ford was unique because even though she was also full of shit, unlike the others she could actually put herself credibly in the same physical location as Kavanuagh, so the Democrats, after initially deciding to not use her because of her poor credibility, were forced to go all-in after some staffer leaked her accusation and the media went apeshit over it.

Christine Blasey Ford is a liberal partisan feminist extremist, and had planned this for many years. She tracked Kavanuagh's career and noted his DC Appellate Court appointment, then, knowing he was a USSC short lister, began to set up her claims after that with self serving statements to her therapist.

Christine Blasey Ford was a liar, and ultimately the American people sided against her. Her very existence did great damage to the whole "believe all women" movement, second only to Amber Heard, probably.