In 2010, Professor David Coleman, an Oxford University demographer, said that the ethnic group would be a minority in its own country in “little more” than 50 years.
The prediction is believed to have since been taken on as part of the rhetoric of far-right and anti-immigrant groups.
Residents near the stadium told the Manchester Evening News that leaflets had been posted through people’s letter boxes at the weekend entitled “Whites to be a minority by the year 2066 or sooner”.
One woman, who is pregnant with a mixed-race baby, said the flyer had left her and her partner “upset” and “disgusted”.