Banksy has said the home secretary calling his migrant boat artwork at Glastonbury Festival “vile and unacceptable” was “a bit over the top”.

A small boat filled with migrant dummies in orange life jackets was hoisted above the crowd and passed around by festival-goers during several performances at the Worthy Farm festival last week.

Speaking to Sky News earlier this week, Home Secretary James Cleverly said: “There are a bunch of people that are joking and celebrating about…