I thought Quebec wanted out anyway?
Quebec has wanted out at times, and there remains a strong minority of folk in Quebec who still do. There are, however, a number of features to the Quebec situation that need to be made sense of when thinking about them in relation to the UK.
What Quebec has always wanted – primarily – is to be recognised as the nation it is. For whatever reason, this has been important to the Quebecois(es), and when Canada passed a motion to this effect, it softened quite a bit of dissatisfaction.
What keeps Quebec onside is precisely the fact that it can do what it wants, even to the point of having only one official language when the provinces have two. This is something they can do legitimately on the basis of the ‘Notwithstanding Clause’ in the Canadian Constitution. On top of this, they also have their own trade offices in places like New York and Paris, and act pretty much like an autonomous country.
What they could not do on their own, for example, is to reject the Crown, as that would be a Federal matter.
In any case, what I am saying is that federalism seems to work, even when using Quebec as an example.