Brexiteers have nothing but disdain for the City and finance. They're a know-nothing movement unswayed by economic research and proudly ignorant concerning, among a myriad of hard truths, the realities of operating in the modern global economy.

They think with a simple wave of their plastic sovereignty wand, Britain will be magically restored to some fictional past where a dominant UK thrived in an economic self-sufficiency bubble. No banking sector or stock brokers required.

Good bloody luck with that, mates.