On a cold and wet January day, history was tempted to repeat itself. Ukip had planned to march along Bow Road and into Whitechapel. The march was called “Walk with Jesus”, and its route would take it through one of the largest Muslim communities in London. Scotland Yard banned it. Assurances were given to local Muslim community leaders that anyone attempting to stage the march through the area would be arrested. Police said the decision was informed by a predicted “hostile” reaction from the local community. Due to the ban, Ukip marched from Marble Arch to Trafalgar Square instead. Men...