The Islamophobia that led to the Christchurch shooting must be confronted

The themes of that manifesto – that Muslims are invaders, intent on replacing the white majority in Europe and the west – are indelibly linked to others on the far right, such as Anders Breivik, who went on his own murderous rampage in 2011 in Norway. But it has a long pedigree in western societies and is not restricted to the political fringes.