I found this article interesting. Here are some quotes:
Brexit’s backers sold the project as a magic bullet that would solve the problems caused by a globalizing economy — not unlike Mr. Trump’s claims that tariffs would be a boon to the public purse and a remedy for the inequities of global trade. In neither case, experts said, does such a panacea exist.
“The truth is, Brexit did not correct any of the problems caused by deindustrialization,” said Tony Travers, a professor of politics at the London School of Economics. “If anything, Brexit made them worse.”
Mr. Trump’s MAGA coalition has some of the same ideological fault lines as the Brexiteers, pitting economic nationalists like Stephen K. Bannon against globalists like Elon Musk. That has led analysts to wonder if post-Trump politics in the United States will look a lot like post-Brexit politics in Britain.
“Brexit caused profound damage to the Conservative Party,” Professor Travers said. “It has been rendered unelectable because it is riven by factions. Will the Republican Party be similarly factionalized after Trump?”
Here in Australia the Left overwhelmingly is kept that we have compulsory voting.
I however think it would not be so difficult to have a civics test before citizens are given licence to vote. We do it with driving after all.
Or science (vaccines, climate change, statistics). Better education at school would definitely help. Half of USAmericans cannot read being 6th grade level. A quarter don’t know we orbit the sun. 40% didn’t know how long it takes a year to orbit the sun.