The picture is more mixed and complex. Jeremy Vine showed that where labour won seats from the tories with small tory majorities, many of those seats were split between leave and remain, so traditional left-right issues of distribution were v.important. But where labour won seats with previously large tory majorities, they were highly correlated with the remain vote (e.g. Enfield and Southgate). If Kensington goes labour, it will definitely be because the incumbent MP was a viagra-hard brexiteer, not because the richest constituency in the country was asking to be pounded by higher taxes.