claig
You seem to have a particular view of the "Establishment" as a sort of conspiracy..
If this is true, then I suspect Trump and Farage are fully paid-up members. What better way of deflecting dislike of its nefarious doings than deflecting it into hatred of the "others" - aliens, migrants, refugees etc.
To me the Establishment are all those with great amounts of money, power, and influence. Being part of it is neither a "good" or a "bad" thing - it depends how that money, power etc., is used. Whatever they are, Trump, Farage etc. are clearly part of the Establishment. As of course is Rupert Murdoch.
As for "the people" - as history, including the last few days, shows, there is no such coherent entity. "The people" consists of many groups, some of which hate other groups of "people". Anyone who claims to speak for "the people" is deluded or mad.
As for Article 50, it is actually in the interests of Brexiters, and all the rest of us, if it there is a delay in it being activated. The full economic consequences of Brexit will not start to become apparent until that happens, and it will be best if as many of the negative consequences as possible are alleviated first. That I am pretty sure is why Boris wants the activation delayed. He wants George Osborne to sort it out, because he, Boris, actually hasn't much clue as to what to do. I doubt very much if Boris is going to retract about Brexit. As a populist, he knows he is now more popular with those who voted for Brexit, and even a conman is not going to betray them, as he will need their votes one day in order to become PM.
In this respect Corbyn and Farage are being more "honest". As the rest of the EU is urging us, as we are leaving, it is only fair to them if we begin the process a.s.a.p.