In some ways, (not the ways that are publicized, in the sense that they could sense that the means by which they managed to survive were being traded out from under them) the people (Not their leadership!) who wanted to 'Leave' had some legitimate beefs.
However, the whole situation has the reek of having been created by external forces deliberately. For example, the push to create a single market for labor is a means of labor arbitrage, to lower wages. Immigrants arent to blame, nor are people fleeing warfare. We could deal with all these challenges much better than we are, whats happening everywhere is the people who currently hold the reigns of power are not the kinds of wise people we need, they are more of a tribe of the very rich who care more about one another than they do about the needs of their respective countries.
As they game the system by taking unfair advantage of its power gradients, they want to keep the planet as divided as they can for as long as they can, blaming everybody but themselves so skillfully that virtually no attention is being focused on the looting of everything, as fast as they can, or the huge problem of exponentially increasing productivity (which should be seen as a good thing by any sane society, leading to people being given more time with families, etc.) The bar to employment is rising, yes, but that shouldn't lead, as it has, to disinvestments in education, or society.
Basically, a failure to implement fair policies like progressive taxation, also overspending on military hardware and washing of hands of the responsibilities to all of us is occurring.
Making the world everybody wants for all of us happen needs to be much higher priority and everybody rich and poor knows this. And admits it in private. SO actually people agree much more than the media implies! Very few people actually agree with the extreme right that gets so much airtime. Those people are basically put there in an attempt to shift the Overton Window by the rich. To prevent attention from being focused on rapidly increasing inequality.
Education is a crucial positive force, instead we're seeing disinvestment. Health is an essential good and we need to have it become a human right. Instead we're seeing efforts to make it less and less affordable. By fiat.
Rights to clean drinking water, energy needed for homes and businesses all need to be protected, instead the wagons are being circled to extract more, before people realize how little they may have for these things in the future, and make these things more expensive than they need to be now. And require countries not provide them to the poor when in many cases they did in the past.
So, it seems to me - as an outsider that at least some of the beefs the pro-Brexit Leave people had were right. Are right, but they were being manipulated, and misled, by people who deliberately mis-attributed the cause of those problems to the EU entity that -although it was in no small part one of the main parties RESPONSIBLE for the huge attack on the (very existence of a) middle class (and also on the poor) that is just beginning, (a founding member, so to speak) it was also in a sense a semi wrapped up package that also had the effect of diluting or postponing the worst of the changes into the future by making huge promises, OR SO GOES THE COVER STORY.. But really, its been implementing policies that originate in Geneva, which is a body of oligarchs, many of whom are bad for their countries.
Because the coalition of the greedy (speaking of all the nation states, north and south that drink the Kool Aid of antidemocratic global governance orgs and their vast cult-like attempt to disruptively remake society with an amoral scheme that reverses right and wrong quietly) its framing public goods in its totally broken definition of public services as a taking of new artificially created 'rights' from corporations and typically oligarch run countries, framing all countries as equally legitimate (a sort of divine right of kings, that nobody ever voted for, or would vote for) its 'programme' is arguably designed to be a wet dream for the despotic, when before they felt pressure to change, now they seem to be held up as the model, the countries where the rich are really rich, and the poor invisible.
This was never anybody's wish except for a very few, and its really a huge global theft of the planet's hopes and dreams for a better less corrupt future, more than any kind of rules based system.
Because it sets up a system where even the worst governments have equal rights with the best. They get everything political, and corporations, BAD AND GOOD get almost total control over everything involving money. And both seem to be bending over backwards to hide this shameful important change.
This is kind of a "Straw Man Transaction" or an "Adverse Possession" to take beneficial ownership - de facto possession of the planet and its future- before what was a gradually improving expectaion that democracy can really become a real one everywhere, someday,- because an uncontrolled Internet with free speech would have had the potential to do that.
Trust me, not only the UK people but to varying degrees the entire world, both developed and developing have been misled on a scale which boggles the imagination.
The best thing people could do to figure it out is stop watching or reading any popular media except very very critically, and instead do research on the roots of the multilateral trading system in the Bretton Woods conference, starting with the so called Uruguay Round, and its alleged 'compromise' on 'services' that first was put in writing via a single paragraph in the preambulary language (non-binding) in the Punta Del Este Declaration of 20 September 1986, as part of the transition from GATT into the totally undemocratic, undisputedly illegitimate, (the only disagree about how to fix it, but none of the proposals could because to fix it would require disclosure that they will never do) The so called 'rules based system' (cough) we (don't) know today.
This is now alleged to have created a body of expectations and obligations, however its really a masterful con game to implement a sort of "Golden Straightjacket" that directly conflicts with democracy, in other words, the hyperglobalization "Trilemma" situation that exists today.
When you understand that all this shenanigans will make much more sense.