The UK should be voting afresh until the UK attains the "right" result that would be the preferred EU choice, The EU has already used this approach with Eire when it was told to jump a second time but somehow the UK doesn't want to jump in the right direction and all the EU treaties barely paid lip service to the unthinkable idea that anyone would leave.
Currently it looks as if Brexit is the first of several exits (Hungary?) to avoid a Geman controlled super-state. Mercifully the Germans don't have a viable army at the moment so the Sudentland is safe for the moment. The EU are however making progress having found a modern Chamberlain aka Macron. He clearly understands German needs less so France's.