Fintan O'Toole: Brexit in one way alone has done a real service.
"The spectacle is ugly, but at least it shows that a fissiparous four-nation state cannot be governed without radical social and constitutional change.
In the aftermath of June 2016 the EU have continually expressed exasperation that the British have really been negotiating not with them, but with each other.
But perhaps it is time to recognise that there is a useful truth in this.
Brexit is really just the vehicle that has delivered a fraught state to a place where it can no longer pretend to be a settled and functioning democracy. Brexit’s work is done – everyone can now see that Westminster is dead."