Brexit is the outcome of a civil war within capitalism. The stuff about foreigners and sovereignty and blue passports was just a smokescreen for some extremely determined economic interests. And we are mere collateral damage. My column: https://www.theguardian.com/commentisfree/2020/nov/24/brexit-capitalism

"We will get out there and we will become incredibly successful because we will be insecure again. And insecurity is fantastic."
Peter Hargreaves (a billionaire who donated £3.2m to the Leave campaign).

The Pollution Paradox explains a lot about the state we're in:

The more damaging the enterprise, the more money it must spend on politics to ensure it’s not regulated out of existence. As a result, politics comes to be dominated by the most harmful companies and oligarchs.

The persistent trick of modern politics – that appears to fool us repeatedly – is to disguise economic and political interests as cultural movements.
That's how Brexit was won.