Control as an euphemism for restriction of free movement for xenophobic reasons. It was discussed a hundred times (and your answer shows partly why Brexit won:

Control as an euphemism for restriction of free movement for xenophobic reasons. It was discussed a hundred times (and your answer shows partly why Brexit won: the message didn't get there) that the UK is not in Schengen (hence they control their borders) and can stop and/or kick out any EU nationals that are a security issue or a burden to the system. Other countries have exercised this right previously (Spaniards kicked out of Belgium, English hooligans threatened to be kicked out of France during the last Eurocup, etc). The only reason to kick foreigners people think of when they talk about control is fear. They fear foreigners. That's what "the EU didn't let them".