More than 4,000 anti-far right protesters protested on Sunday in Erfurt, the capital of the German state of Thuringia. The state is traditionally a stronghold of the right-wing Alternative for Germany party, known as the AfD, which polls suggest could become the second strongest in the Erfurt parliament. “[It is frustrating] that despite our work, teaching history and politics, at the moment about thirty per cent of the people in Thuringia are prepared to vote for the AfD. But of course that cannot make us give up,” Jens -Christian Wagner, the director of the Buchenwald memorial, which is situ…