Trouble is the world has gotten to be a much smaller place. Britain's influence of years gone by was achieved by having a navy sufficient to get around the globe, and collar a good portion of it for a captive market.
That unravelled fast when the Americans made it a loan condition that sterling become fully convertible, and the subsequent collapse of the Sterling Area ?
Given that those days are never going to come back, it might make much sense to team up with such as the Frogs and Germans in order to be partners truly world sized industry ? Think of Airbus standing toe to toe with Boeing, if it were not for European co operation that simply would not be the case, as no single European nation could boast aerospace capacity to achieve such presence.
Sadly, Britain doing its own thing in the 21st century is more than likely to end up as Britain having to compete with others to supply components to what others are making. That means sub contractors pay whilst the big money goes to the sellers of finished items.
Personally while I stay in academia, no wish to retire. Paid a decent salary to discover new things about the brain - fantastic. Probably why many of them carry on publishing into their 80s.
Although one of the guys in the lab I did my PhD is now working as a statistician - he only works three days a week and pulls in 50k a year - so at 30, it could be argued he's also semi-retired, so the option is there if I want.
They were talking about that provided the UK did the same for persons from other EU states who are resident in the UK.
I THINK the stumbling block is that the EU were asking for said "right to remain" to be valid even if the person gave up said residency by moving back "home" or elsewhere in the EU for an extended period of time.
There are two issues- right to remain is one thing, leave to enter is another.
Everyone effectively asks leave to enter- the right remain is a prerogative thing. It's dependent on Government policy and is conditional.
If you are a not EU resident and have ILR, Then the right to remain is implicit until it's ended by one party or the other otherwise your'e subject to visa restrictions. British citizens still ask for leave to enter, it's granted on the basis of their citizenship.
There will probably be no issue with the "leave to enter" bit. I can't even see an issue with the right to remain for most EU workers/residents initaly, but I can see dropping the no questions asked bit as the reason for their visit/ stay.