The evidence is there for the toxic aspects or Faragism but nothing will make the penny drop about his views on other issues like the NHS.
He speaks in superficial sound nostalgic bites about warm beer , democracy and Union Jack bunting. Not even roasting Ann Widdecombe's cats will lose him his core support.
The evidence is all there, his shifting policy on Norway, his lies about Turkey, his lies about EU membership costs, his taking EU salaries for no work, taking 1/2 million bonus from Banks, saying he wants to live in the US. The facts don't matter.
For the 30% + he has harnessed their feels. It's impossible to expose that unless and until he is actually a cabinet minister. Once he brings in an unpopular policy then and only then will the Union Jack tinted spectacles fade.