“Their attitude is basically that the people coming in are neither refugees nor migrants, but invaders,” said Jean-Yves Camus, one of France’s leading experts on the far right.

The leader of France’s National Front (FN), Marine Le Pen, claims that the migrants are “illegal immigrants who are over-demanding and arrogant” and that three-quarters are not refugees at all, but people who just want to claim benefits.

Europe’s biggest migrant crisis since World War II is “what the FN has been warning about for years”, she says.

Le Pen’s blunt solution to the stream of people arriving at Europe’s borders every day is to “warm them up, feed them and then send them back where they came from”, she told Paris-based foreign correspondents this week.