By Marcus How in Vienna Since 2021, Hungarian Prime Minister Viktor Orban has cut an isolated figure in Europe. The glory days of 2015-2021, when at least three of the governments of the Central European Visegrad Four group were led by illiberal democrats, are a distant memory. That began to change at the end of 2023, when Slovakia’s Robert Fico returned as prime minister at the head of a nationalist coalition, and the Netherlands’ Gert Wilders led his Freedom Party to secure first place in the Dutch parliamentary election. Allies are important on the European stage, particularly for the Orban…