This Mail on Sunday piece seems a very over-cooked headline on Claire Ainsley's (vg) research on class, inequality and poverty, democracy and trust at the Joseph Rowntree Foundation. (Not esp a hard-line right-wing agenda).

"pro-Brexit" does over-egg this type of post-referendum analysis. "Whether one voted leave or remain it is hard to argue against the evident fact that by voting leave a spotlight was shone on the condition of many parts of the UK" calling for more focus on "left behind" areas.

Details of her book. Research, not polemic, and often shared concerns across different left strands.

If you want a snapshot of Keir Starmer's new head of policy's previous thinking about policy-making and the public, this short Political Quarterly piece could be a useful guide
https://politicalquarterly.blog/2019/11/07/could-public-attitudes-led-policy-making-fix-our-democracy/

Head of campaigns at TUC, Antonia Bance has also tweeted a thread on this https://twitter.com/antoniabance/status/1254171691808370696?s=19

There is a useful bluffer's guide to the Claire Ainsley book 'The new working class' in her short Autumn 2018 article for IPPR's Progressive Review, summarising its overall themes and the potential policy and political implications.
https://onlinelibrary.wiley.com/doi/full/10.1111/newe.12098

Policy priorities in the article and book.
https://onlinelibrary.wiley.com/doi/epdf/10.1111/newe.12098 (PDF of the article)