[rgbrgb]

I agree he maybe didn't connect them crisply, but I think the general idea is that even though staying in the EU has a higher net value for the British economy, that value is not being distributed to the working class who voted to leave. Instead it is collected at the top by a wealthy elite of land and business owners. It's a problem of team incentives (net UK economy) being misaligned with individual incentives (individual worker quality of life).