A protest on East Wall Road in late November: There is a demand for a vulnerable Other. Refugees and asylum seekers fill it – but if it were not them it would be somebody else. Photograph: Colin Keegan The important thing to remember about fascism is that it doesn’t need excuses. The object of its hatred is irrelevant – the hatred itself is the point. The eternal template of the far-right is anti-Semitism. White supremacists in the US, pushing the Great Replacement conspiracy, slip in their chanting from “You will not replace us” to “Jews will not replace us”. They...