Sigh.
As a historian I find comments like this so depressing.
Do a tiny amount of research and look at how the UK was in the 1970s.
I lived it and it was grim. It was Thatcher who ruined UK manufacturing and business (at least any businesses that she and her ilk weren't on the Board of...)
We were called "the sick man of europe" with very, very good reason.
We are there again.
The largest trading bloc in the world is only a few miles from our southern shores. Huge buying power and bargaining power as evidenced by things like free roaming charges for EU residents.
We only produce 40% of the food we need.
But don't worry! We have a great deal with Australia that will leave our own farmers worse off.
How utterly, utterly ironic that our own Royal family - so lauded by brexshitters - are Greek/German.
How interesting that the ruling elite of the UK (the nobility and those that go to Eton, Harrow, oxbrodge, and then into politics...) are still the same names that came over with the Conqueror.
Study the past to understand the future.
There is nothing new under the sun, although I'd hoped I wouldn't see War in Europe in my lifetime.