On a night when his band walked off and his opening acts refused to perform, Ed Sheeran stood alone before a full stadium and acknowledged what the silence around him had already said. Macklemore had been removed from Sheeran's tour after making pro-Palestinian remarks from the stage, and the ripple of that decision spread until it reached Sheeran himself. For years he had kept music and politics in separate rooms, but the machinery of his own tour forced the door open — and he told the crowd he could no longer conceal how he felt about what he called a humanitarian issue. It is a moment that