In the latest YouGov poll last week, 53% said the U.K. was wrong to leave the European Union, versus 32% who still believed it was the right call.Anand Menon, director of the U.K. in a Changing Europe initiative, told CNBC that there were two key shifts in the public's attitudes towards Brexit.In Jan. 2019, the year of the last general election, Brexit/Europe was a key issue for 72% of voters, the highest concern recorded since September 1974. By October 2022, this had fallen to 6%.Polling suggests that a majority of...