[Pollster1]

And if justices serve “during good behavior,” then any impeachment effort would have to demonstrate that Kavanaugh is not behaving well CURRENTLY.

That applies to both sides. We couldn't have impeached Obama for his pro-terrorist actions before the election. They cannot impeach President Trump (or Justice Kavanaugh) for any indiscretions from prior to the election/confirmation, even if one of the thousands of completely arbitrary allegations happens to be true.

[IronJack]

This falls under "ex post facto" judgment. Besides, nothing Kavanaugh is alleged to have done rises to the level of a crime. If this hag was so grievously offended, why didn't she bring charges? Why doesn't she press charges NOW?

1) Because it never happened.
2) Because there's no chance it would ever make it to court.
3) Because if it did, there's no way the state could ever get a conviction.

But in court of public opinion, with the support of Hollywood airheads, press whores, man-hating government witches, and complicit Republican lackeys, no evidence is necessary, and a fair judgment is a luxury.