Of course we have had open borders. (Posted in 2021:)We have never, ever had open borders. It's a figment of the imagination.
Even if we were within Schengen, which we never have been, there are strict controls in place as to who can enter. As a lot of Brits are going to find out, the next time they go to the EU on holiday, and find they have to have their fingerprints taken and God knows what else.
The problem is a grossly incompetent government, which is absolutely fucking shit at actually doing anything, but extremely good at passing on the blame to a range of others, aided by our poisonous press - e.g. The Daily Mail. People get wound up because they take these lies and diversionary tactics on board.
It depends what you mean. If you mean there was never a time when Britain didn't have any restrictions on immigration, there was such a time. Most of history in fact.
Whether that's realistic now is another question - and if you do restrict immigration who decides who comes in? It is of course the one area where capitalist governments tend to think that letting the market decide doesn't apply. ...
I'll make my usual point that from the arrival of the Flemish weavers this area has done ok from work provided by immigrants who came without restriction. Engels (his dad), Renold chains, Beyer Peacock, Ferranti, ICI, Clayton Aniline.... bloody European immigrants coming here and employing thousands.
It was the arrival of pauper Jews from eastern Europe that prompted restrictions on immigration.
The Royal Commission on Alien Immigration (1902) said it was immigrants (with their industry and ideas) who made Britain "The Workshop of the World", and most of those were "economic migrants" = people who saw a chance to make money in Britain and ended up making money for Britain. Then the pauper Jews came...
Report of the Royal Commission on Alien Immigration
books.google.co.uk