And anyway, you just said that more than half of the voting public were stupid for voting for Brexit so I don't think we have anything further to talk about.
They were stupid and/or swayed by outright lies. And forgot or didn't know that their region (South Wales, Cornwall, old industrial North East England) benefited hugely from EU grants which are unlikely to be replaced by grants from Westminster.
I agree with your general point and know Wales did benefit a lot. The North East figures I saw were surprisingly low, though. They weren't getting much out of the pot at all from what I saw.
The north east got some funding from the EU when the pits closed and they became one the most poverty stricken regions in Europe. But it was not spent on the ordinary people. I watched in despair as well to do hippies from Greenwich and the Isle of Mull descended on the place with their funding applications to teach dosey-do workshops to the impoverished and set up craft think tanks on how to make corn dollies. It was obscene. First thing they would do once the funding was in place was to employ their significant other as Chair of the project and award them 3 years paternity leave. The money was milked dry. And I think it's one of the reasons that people lost faith in collective social enterprises.
I had the agony of watching all my school mates from the North East posting Britian First memes on social media. When we were growing up there was always one weirdo who was in the National Front. now they are all so scared and angry of Daesh and mad men with axes that they all want to vote UKIP. It's the first time I have ever felt ashamed of my birth place.