The differences here are over values not facts. Specific examples aside, the EU buys into the idea that you can harmonize society with the right laws. The Brits were never going to be okay with that. It's a continental idea and inimical to common law. This is a country where they don't have ids. They passed a law to create ids but then it was repealed and the ids were destroyed. You can read Notes from a Small Island…
Okay, so for "The disastrous decision to share a currency", it seems that this argument is coming a lot in exchanges i have, and always with the same kind of people: those that either don't know about economy at all (because, let's face it, its not really interesting except for nerds like me), or those at the dunning-Kruger peak in macroeconomy. You should read about ECU and ERM, and research speculative currency att…
You are free to disagree but referencing "Dunning-Kruger" is just ad-hominem. I can link various things that "you should read" too.