I watched the forum at work today and even if you did not like him, he held his own without name calling.
He did great. Didn’t fall for the race baiting, and hardly blinked at the insults. That was no studio audience. Those were plants from the anti_Brexxit crowd. You could hardly have drummed up a more hostile audience.
Basically he said “I don’t are what “experts” say because they are wrong”.