>In June 2025, 56% of people in Great Britain thought it was the wrong decision

It's not so clear when you consider that 48.1% of the original referendum voters wanted to stay in the EU. I'm honestly very surprised by this poll, 8% change is pretty minimal considering the turmoil the country has gone through since 2016.

How much of this can be explained by older voters dying in the intervening 10 years, I recall that demographic skewed much more heavily Leave in 2016