Stonewall’s latest advice to organisations to not use the term ‘mother’ has provoked a bitter backlash today, with a growing number of critics and activists calling for an inquiry into how the charity has had such influence over Whitehall.

The furore follows a report in the Telegraph which revealed that Stonewall has advised organisations to replace the term mother with “parent who has given birth” to help boost their ranking on an equality leaderboard, which hundreds of organisations were hoping to get on as part of their attempts to show they are forward-looking places to work. Journalist Andrew Pierce has called the advice a “death wish” for Stonewall and a sign of “insanity”.