Re: Windrush & Co.:
"... introduction of a national ID card and compulsory residential registration, the way the Scots, possibly the Northern Irish and (latterly) the Irish have done by subterfuge."
So much subterfuge that it isn't noticeable! Mrs IP and I moved to Scotland about six years ago, and we've seen no sign of an ID card or compulsory residential registration. Mrs IP isn't even a UK citizen, and yet there has been no sign of a requirement to register anything. What are you referring to?