Kavanaugh is a smart and very well educated man who has for several decades chosen to use his intellect and education to ensure that his class retains its wealth and privilege and that those born into less fortunate circumstances do not threaten that wealth or privilege. A smart man can only do that if he believes in his own righteousness and pushes out all ideas that threaten the assumptions of righteousness, and rightness, around which he has built his life and his ideology.
If Al Franken is not held firmly accountable for his behavior, it will make it almost impossible for progressives to hold anybody accountable for sexual harassment in the near future. It will also create further barriers for women seeking to tell their stories of sexual harassment, provide cover for somebody because of his politics, make progressives vulnerable to the charge of being hypocrites, and provide rhetorical ammunition for all those on the right who would love to claim that much worse accusations against Moore, Trump and potentially others are simply political witch hunts. This may mean than an otherwise distinguished progressive who has made himself one of the most outspoken and compelling voices of the resistance will have to leave the Senate. That would be very unfortunate, but the alternative is worse.