Up to a third of the population will be black or from another ethnic minority by 2050, new research forecasts today.

There are currently eight million non-white people – 14% of the total – across England and Wales, according to the study by the Tory think tank Policy Exchange.

But the so-called BME (black and minority ethnic) population has doubled in the past decade and now accounts for 80% of growth while the white population has remained constant.

While ethnic minorities make up just 5% of the over-60s, they account for a quarter of under fives.

That means between 20% and 30% of people will be black or ethnic minority by the middle of the century.

And it is a time bomb for the Tories who struggle to win votes from BME communities which overwhelmingly back Labour.

The findings should act as a wake-up call for politicians to stop treating people from non-white backgrounds as one, single group, the think tank said.

Since the Second World War immigration from the Caribbean , the Indian subcontinent and Africa has produced in diverse groups with widely differing opinions, experiences and traditions, it said.

There are “clear and meaningful differences between each of these communities which need to be fully understood” but politicians are not doing that, the report says.

Author Rishi Sunak said: “These communities will continue to become an ever more significant part of Britain, especially in future elections.

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