Haters gotta hate and all that - only the very naive would think that signing a few bits of paper a few years ago would 'cure' generations of hating 'others' as a done deal.
So now it might not be burn the Catholics or ginger-haired people and even effigies of Guy Fawkes, widely accepted on the UK mainland; they're burning a different effigy instead.
The 'message' sent is the same as those sent not so long ago - stay out of our patch of ground. Message received here - I won't be moving my ginger English self anywhere near you.