TThe processes initiated by the UK government to withdraw from the EU and the search for separation from their original states of Catalan and, to a certain extent, Scottish secessionists, possess several similarities.
Firstly, both show a similar degree of dissatisfaction with accommodation within multilevel polities or multilevel governance. In fact, both show the limitations of the policies of accommodation within these multilevel polities. The UK had obtained partial derogations of the EU acquis (starting with the European Social Charter and continuing with all other treaties since then). Regions (either Catalonia or Scotland) has also seen their devolved powers increased significantly in the last decades. Yet, in neither of these two cases were these mechanisms for accommodation of their differences enough to contain the desire for a total exit from the polity.