The Brexit Leave camp may have a point that, despite the referendum, Britain’s institutions remain luke warm or opposed to our exit from the EU. This argument has turned into a whine of foot-stamping and threats of riots because Leave is missing the wider truth. The Brexit vote is equivalent to regime change with Leave insisting that the DNA of institutions carefully put together over decades, if not centuries, suddenly switch to match Leave’s view of how the world should be run. Leave wants Britain’s judiciary, civil service, banks, the business, science and intelligence communities and political class suddenly to view those seen as allies as hostile, to adopt values alien to their professional cultures and so on. Leave does not understand that nether Brexit nor democracy comes in a single referendum vote. It is a long process of persuasion and negotiation, not one of temper. Leave could learn from studying Mohammed Morsi’s Arab Spring electoral win in Egypt in 2012. It didn’t work and Morsi was overthrown a year later because his Muslim Brotherhood movement failed win over Egyptian institutions embedded with opposing values. In short, Leave wants what the US fantasized about in Iraq in 2003 when it expected Iraqi institutions, embedded with authoritarian values, overnight to wave the flag for Western democracy, then carry on as usual. If, at this early stage of the Brexit process, Leave is warning of social unrest when it doesn’t get what it wants, we can, with trepidation, anticipate how nastily things will unfold when immature populism comes face to face with political and economic reality. If Leave wants to win, it needs to learn how to present evidence and persuade. So far, it has failed.