Society needs to act to help white working-class pupils. - UK inquiry
The inquiry found a growing belief among white working-class families that the current education system does not guarantee future success.”
Systemic failure now more evenly distributed and hopefully means it is going to be a focus for those who can solve it.
It would logically follow that if amongst working class white families there was a decline in the belief of educational efficacy, then there would be a decline in education achievement for that cohort.
When those failures become visible in the majority group, people have to start taking it seriously.
There's a reason this happened in the US but it's not likely to be directly applicable to the UK, even though the outcome is similar.