In 2017, after the thunderclap of Brexit and of Donald J. Trump, a 39-yerar-old French politician made a bid for his country’s presidency on a platform of change and hope. He’d published a book called Revolution before the election, a manifesto to beat a resurgent far right across Europe. Emmanuel Macron won that election and the next one but now, in the last stages of his tenure, it does seem as if the revolution is upon France, only it is not the one he promised. The country caug