Seeing as you always approach these matters empirically:
Koch: What's in a Vote? Brexit beyond culture wars
McKenzie The Class Politics of Prejudice: Brexit and the Land of no-Hope and Glory
Telford & Wistow Brexit and the Working Class on Teeside: Moving beyond Reductionism
Short: The Geography of Brexit: What the vote reveals about the Disunited Kingdom
Dawson: Hating immigration and loving immigrants: Nationalism, electoral politics, and the post industrial white working class in Britain
Hall, Treadwell and Winlow: The Rise of the Right
Mahoney & Kearon: Social Quality and Brexit in Stoke-on-Trent, England
Willett, Tidy & others: Why did Cornwall vote for Brexit? Assessing the implications for EU structural funding programmes
McKenzie: ‘It’s not ideal’: Reconsidering ‘anger’ and ‘apathy’ in the Brexit vote among an invisible working class
Abstract from article 1:
The result of the United Kingdom's EU referendum has been interpreted as evidence of a “culture war” between proponents of liberal cosmopolitanism and defenders of socially conservative values. According to this interpretation, voters on both sides are seen as driven by identity-based politics. But on a council estate (social-housing project) in England, what made the EU referendum different from an ordinary election was that citizens perceived it as an opportunity to reject government as they know it. Citizens’ engagements with the referendum constitute attempts to insert everyday moralities into electoral processes. They provide an opening into alternative, if yet unknown, futures that go beyond any singular narratives that divide the electorate into camps of so-called Leavers and Remainers.
Summary from article 3:
(a) The effects of neoliberalism on working-class life over the last 40 years provide an important explanatory framework for the vote;
(b) The Labour Party’s abandonment of the working class appears to be a principal reason why these people voted to leave;
(c) The EU referendum offered a unique opportunity for working-class people to voice their dissatisfaction with the dominant social, cultural and political hegemon in contemporary England
You should be able to read all of these online - or at least the abstract.