a lot of them are falling for the privately educated ex city trader Farages nonsense that he’s a “man of the people”
This parallels Trump, but I think it's mostly not that people are really fooled into believing these wealthy politicians are just like them. I think the attraction is more that the current system isn't working for a lot of people and hasn't been for a long time. Someone who offers to tear it down can attract a large following even if they don't have a good proposal for what to replace it with.
It took a while for me to see that because I find the racist and nationalist beliefs of the likes of Trump, Farage, and the AFD so appalling it's hard to see anything else.