Amidst verbal and actual violence, it is tempting to seek to shut down, say, Farage or Lammy altogether. But politics without anger would be impossible – and undesirable.

Rebecca Lowe Coulson: The unkindness of nazis

Of course it is not sufficient to condemn violent racism, like that in Charlottesville, because it is unkind. But history teaches us that we must watch for signs of a loss of empathy for others.