I was looking over this post from 2016, on the consequences of a relatively successful Brexit
I’m finding it hard to see that anything will happen to justify the massive effort involved. The Poles and other EU citizens whose presence was the biggest single justification for Brexit won’t go away. On the contrary, it seems pretty clear that all EU citizens will get permanent residence, even those who arrived after the Brexit vote. Even with a hard Brexit, the benefits of consistency with EU regulations will be overwhelming. The terms of any trade deal with non-EU countries won’t be any better than the existing EU deals and probably worse. Even symbolically, what’s going to happen? Typically, national independence is marked by a ceremony where the flag of the imperial power is lowered, and the new national flag is raised. But, from what I can tell, the EU flag is hardly ever flown in the UK as it is. The same for national currency, passport, official languages and all the other symbolic representations of nationhood. So, after a successful Brexit, Britain will be a little poorer and more isolated than before, but otherwise largely unchanged. Will that count as success in the eyes of those who voted to Leave. I don’t know.
Most of that still looks about right. But as commenters at the time pointed out, I was wrong about passports. One of the big things Leavers disliked about the EU was the replacement of the blue British passport with EU burgundy. It turns out that the colour change wasn’t compulsory, and the reintroduced blue passports will be printed in France, but at least that is a symbolic win for the Brexiteers.
On the other hand, how does this fit with the oft-repeated claim that Leave voters were “left behind” “stayers”? To be nostalgic for blue passports, you would presumably need to have undertaken a fair bit of international travel before 1988, when they were replaced. That experience, combined with the assumption that Britain is far superior to the EU, sounds like the profile of a stereotypical well-off, middle-aged or older, Tory voter. And, as far as I can tell, it was this category that provided the core support for Leave. That’s consistent with Trumpist voting most places in the English speaking world.