The EU started out as a project to bring lasting peace to Europe. For 70 years it has been successful. In exchange for peace the nation states gave up a small amount of their sovereignty. This is all becoming forgotten, as populist nationalism resurfaces in a number of countries, along with racism and fear of foreigners. Those who think small are driving out those who think large.This is very bad as it feels like a return to the thirties, a period of which most people now remember nothing.
One only can hope that the pathetic mess in Britain now will be an example for others of what not to do.