Earlier quoted context omitted.
It's unclear whether the 'they' you refer to are the British people, or the class of ruling individuals who know exactly what they're doing and are set to profit immensely. (I'm aware that all sounds quite America-like already)
For a start the people who actually rule - the MPs in parliament - are predominantly remainers. When it comes to business leaders, they're as divided as everyone else. A lot of businesses do extensive trade with the EU and stand to lose. The finance industry particularly risks losing a lot of business, although there are some sectors of it that might gain it's mostly through trading on short term volatility. They'll…
The vast majority of the city and other business leaders where asleep at the wheel - what they should have done is had a quiet word with Harry Peirce (MI5) at the club about these dangerous subversives.