What I see instead is the other side of Hanlon’s razor —incompetence— coupled with a political class riven with pockets of self-interest, and very few seemingly with an intellectual hypothesis to explain the UK’s current predicament, or to chart a path out of it.
No dark rooms, armchairs or cigars are needed. Did you guys even read Wikileaks?
e.g. corporate lobbying clearly exists and operates, and may be nefarious, but is broadly directed towards the corporate entity's gain, rather than dividing and conquering the masses.
Conspiracies are a very common part of business law, people just do not accept that it can happen in the political realm.