The problem is not the far-fetched possibility of mass expulsions: it's simply that, after Brexit, British citizens will likely need a work visa in order to wor

The problem is not the far-fetched possibility of mass expulsions: it's simply that, after Brexit, British citizens will likely need a work visa in order to work in the EU. And work visas for non-EU applicants are neither easy nor quick to get. I guess the UK could propose to allow free movement of British workers to the EU, but the EU will demand in turn that European workers be allowed the same free movement to the UK (and stopping that was one of the main points of the Brexit vote, wasn't it?).