Jean-Claude Juncker, President of the European Commission, is not a democrat. He has declared that the will of electorates in the EU can be overturned if they produce governments that are not of his liking. He and other despots of the Commission have now apparently arrogated to themselves the power to crush at will any elected EU government. Countries like Poland, Hungary, Slovakia, Austria, Holland and France that have produced in democratic elections governments or large parties that reflect concern about mass immigration into Europe have been told that they will be ostracised and economically sanctioned for the views of their electorates. This is not just champagne socialism on meths, this is fascism. It is also a massive shot in the arm for Brexit. The Leavers might well ask who in their right mind would want to stay in a political organisation that is so shamelessly un-democratic?
I would say stay and reform the EU. Start the reform by sacking Juncker and those of his ilk. In the Union, Britain, with its great tradition of the paramountcy of parliament, could be a big and powerful reforming force.