Why? No, not those sexual allegations; unproven. She said, he said.
Why then? In a word: privacy.
Our bedrock Constitutional protection from unwarranted invasions in this regard is the Fourth Amendment. It reads as follows:
"The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized."
In what way does Judge Kavanaugh fall foul of this eminently reasonable public security blanket? He supports the Patriot Act. And what manner of beast is that, pray tell? Its full title is: "Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001."