We live in the age of the influencer. Ask the Kardashians. For not just months, but for years, Britain’s habit of providing high-quality period dramas and crime series has been rendered redundant by its ability to churn out irresistible dollops of political farce. Reality tv meets soap opera. It’s a political version of Love Island, the Big Brother House and I’m A Celebrity Get Me Out of Here. It’s built around personality and fuelled by the obsession to become famous. Characters emerge from nowhere, command space on centre stage for a brief time and then disappear into thin air. It…