There is a slew of studies which tell us what we already know. They inform us, often in a rather surprised tone, that marriage is good for us. Married people tend to be healthier, happier and even wealthier than people who are cohabiting.

The arresting title of Naomi Klein’s latest book is No Is Not Enough. Klein is often considered to be a hopelessly impractical, radical left-wing social commentator and feminist eco-warrior. Her book is a response to the election of US President Donald Trump, and it is a sustained attack on pretty well all he stands for.