The poor Brits didn't think this through. They had an agreement with the EU to accept only a limited number of "immigrants", which is why the Muslims have piled up in Calais, across the Channel. France is holding them. However, France has said that as soon as the UK is officially out of the EU, they're going to release all of these Muslim "immigrants" and put them on the train to England.
Also, the U.K.has done enormously well with the trade deals, and also needs Eastern European and other workers to do the work that their lazy welfare class won't do - I was there a couple of weeks ago, and believe me, if these people are forced to leave the UK, every hotel, restaurant and service business is going to have to shut down.
They don't need more illiterate, criminal Muslims, but that's what they're going to get.
As far as the controls, the EU needs to loosen up on some things - but the environmental nonsense in England is actually because of bizarre UK laws, sponsored by someone whom May has reappointed. So the EU has nothing to do with that. EU laws are crazy, but many countries, such as England, actually went one step further
The Brexit slogan sounded great, but it was meaningless and nobody thought this through. And their cowardly politicians didn't raise their heads at all.