Almeida theatre, London A north London Jewish family share a meal " and heated arguments " in this complex and courageous drama Stella Adler, the renowned actor and teacher of Yiddish origin, believed theatre to be a "spiritual and social X-ray of its time". That might be an ever more unattainable ideal in our time of Punch and Judy politics, culture wars and artistic self-censorship. This is one of the reasons why …