You do not learn. Ever. This notion - "a man is proven innocent until proven guilty" - is irrelevant here. This is a job interview - for a lifetime appointment at one of the most important jobs in the world - with so much smoke swirling around this candidate that no one would ever hire him for anything else.
There are plenty of other pro-life zealots you could get, ones who would not threaten the very legitimacy of the court with their belligerent partisanship.
If he actually gave a shit about his country, Kavanaugh would step aside. Trump could nominate the chick from ND and you guys could have her confirmed by mid-October.