Except unlike the US. The Brexit vote hasn't set them free. May agreed to terms that will ensure that the EU can destroy the UK before it ever tastes it's freedom.
It's best if it doesn't gain traction. I'm sure POTUS doesn't need the crazies protesting and rioting where they're trying to build a wall. He'll just start the little bit of work that they were allowed to do by the Wall specific text in the Omnibus and then just never stop.