“‘It’s hard to make comedy out of situational paralysis,’ said Nish Kumar, a comedian whose show at the Fringe is called ‘It’s In Your Nature to Destroy Yourselves.’ … But many comedians on both sides are trying to understand and explain, rather than merely mock. Mr. Kumar said that 2016 was the year for angry Brexit-themed shows … In 2018, the festival seems to reflect a nation that is finally coming to terms with the fact that Brexit is happening.”