I actually don't mind that Kavanaugh became emotional; he's being accused of heinous things in front of the whole world.
It's the disrespectful, childish things he did that's the problem; the non-answering, bratty way he behaved, like when he answered "Did YOU ever black out drunk??" His refusal to answer simple questions and the hostility he displayed not only showed sign ...[text shortened]... maturity needed for the highest court in the land.
Oh, and the lying under oath bit didn't help.
Kavanaugh is deflecting with the "emotional" nonsense; he prepared his opening remarks well in advance and they were hysterical, unrestrained partisan BS with gems like this:
"This whole two-week effort has been a calculated and orchestrated political hit fueled with apparent pent-up anger about President Trump and the 2016 election, fear that has been unfairly stoked about my judicial record, revenge on behalf of the Clintons and millions of dollars in money from outside left-wing opposition groups," a seething Kavanaugh said.
This something you expect out of Hannity or Tucker Carlson's maws, not from someone who is trying to be confirmed to the SCOTUS.