Tens of thousands of people joined a demonstration against cooperation with the far right in Berlin on Sunday, after US Vice-President JD Vance called for Germany to drop the longstanding taboo. Among the protesters are elderly women holding slogans reading "Omas gegen Rechts" or "Grannies against far right". For these women, who grew up in post-war Germany, the prospect of the far right returning to power is inconceivable.