The cover of Figaro magazine says it all. “They are leaving for London, Brussels or New York,” it says, and asks, “Why are they leaving France?” It then talks of “the ravages of fiscal banishment” and “the youngsters who leave to succeed elsewhere.” The young people shown seem to be happily waving goodbye to France’s punitive taxes. It bears remembering that there are misguided people in Britain who tell us that taxes do not make people change their behaviour…