I'd never call you a liar, any more than the man in question.

I'm hoping we don't cut off our nose to spite our face, and that free movement will indeed be preserved. But the chances aren't too great. I doubt very much if the EU will budge significantly on this issue.

There could be some kind of fudge which the British govenment will try to present as a negotiating triumph, the way there was with Cameron's "EU reforms". I'm sure the Sir Humphreys could cobble up something of that sort.