Re: EU must be joking
What has the EU ever done of a positive and useful nature that could not have been done without its existence?
As a consumer or as a business? As a consumer, the only reason you have what you presently get in a supermarket it Eu.
1. Goods themselves - the cost is so low today only because there are no customs to ship them across. I suggest you look up what was the cost of strawberries and flowers out of season 40 years ago. Hint - it was so high that it justified shipping by air from South Africa. Try that now (even with the reduction in cost of shipment by air due to technological improvements).
2. Infrastructure to ship the goods across the continent.
3. A recurring influx of cheap labour every 5 years or thereabouts since the late-70es (first Spain, Portugal, then Eastern Europe) to harvest and process the goods. Both locally in Britain and abroad.
You will see the difference yourself next time you shop after BrExit and after the tariffs and delays at the border come up. You may hate or like BoJo, but he unintentionally said something honest recently: "Europe does not need us". That's right BoJo. There is no Prosecco and Audio pipe dream. Even you (albeit unintentionally) finally admitted that. While Mr and Mrs Meldrew may like the idea of "vegetable, how long do you boil this one", I would not be so sure about the younger generation of Joe average consumer.
As a business, Eu changed the way business is done.
It practically obsoleted verticals. Everyone is buying from everyone. That has its downside and upside. A monstrosity like British Leyland can no longer exist in this world. At the same time a small or medium manufacturer which would have never gotten any piece of the action in the age of monstrosities can compete as a supplier somewhere in the supply chain. The downside is that it has to be something high tech due to UK cost of labour. UK has chosen to exit this game. Any hopes that it will re-establish verticals are rather far-fetched. They cannot compete against a pipeline built around contract/lean manufacturing. It will, however, immediately kill all British SMBs which play the game at the moment and put all the people they employ on the dole.
As a side effect that feeds back to consumer too - the complexity and raw cost of a modern car for example is orders of magnitude above a Morris Minor. The only reason a Golf today costs LESS than a Morris Minor in inflation adjusted money is because the manufacturing is no longer vertical and Eu has allowed that to happen. Once again, the moment UK exits the game (and especially the moment it decides to "protect" whatever it has left as car industry) it will learn this one the hard way.
And so on. While for the poorer Eu countries, Eu has delivered mostly tangible improvements - roads, etc, the improvements major economies have seen are more subtle. They are however present and the only reason we can afford the standard of living we have today is exactly that - the demise of borders and the resulting demise of moribund verticals protected by the state.