The US is fiercely protective of it's (sic) borders, to the point of paranoia. I can't see them demanding freedom of movement with the EU
I meant freedom of movement one way, USA to EU. There is a great deal of unemployment in parts of the US. And as to their paranoia as you call it, it has every right to be diligent. Years and years ago some of you will recall that USA virtually had no benefits system, except Unemployment Benefit for those who had worked and even that was time-limited. But now America has become very much like Britain and is no longer recognisable as the beast of capitalism.