Brexit wasn’t just about trade deals and such like.
Primarily, it was about sovereignty and being able to steer our own course in the world.
I would liken it to how the nationalists feel about an independent Scotland. There is no economic case for tearing away from your next door neighbour and biggest market.
Its sovereignty, nothing more, nothing less.
My country is the UK, the nationalists see their country as Scotland.
Its really quite simple.