I can’t recall a Leader of the Opposition who makes such vacuous speeches, devoid of policy or a plan, as Sir Keir Starmer. He was at it again this week when he took to the stage to give us his views on the culture wars. “All in life is art and politics”, Ai Weiwei once remarked, but those hoping for an incisive account of their intersection were disappointed. With so many words, he managed to say so little.