@RedTagAlan
Is it not rather astounding that someone with so much knowledge about the subject can't name one universal benefit.
Nobody can produce a universal benefit as people will have different opinions about what is good or bad for themselves. It’s why general elections are held at least once every 5 years.
As for polls that support Brexit, I would refer to the three general elections since the HOC vote held 29 March 2017. All were won by parties who were pro Brexit.
The 2019 general election was the most significant of the three. Watch the 5 September 2019 episode of BBC Question Time where the major parties laid out their Brexit policy:
Liberal Democrats
Layla Moran stated that if her party won article 50 would be revoked. A very clear statement I would say. They didn’t win the election and received fewer votes than in 2017.
Brexit Party
Richard Tice said they support Brexit. However, they did not contest the election.
Labour
Emily Thornberry stated the Labour Party policy was to have a second referendum which included the option to remain. Labour got their worst result in 84 years.
Conservative Party
They said they would get Brexit over the line. They won.
SNP
They were against Brexit.
So, what was in the manifestos of the parties that were against Brexit did the voters think were worse than Brexit?