WHY the Brexit?

Here is one commentator's answer:  "People imbued with common sense cannot understand why, either in Great Britain, or in ,or in the United States, the people that run the show would want to leave the borders wide open and allow the nations to be flooded with people who are not going to end up advancing the nation... It's not racism. It's not sexism.  It's not bigotry.  All of the things that the elites and their media cohorts are gonna try to chalk this up to, it's not about any of that.  It's about a desire to be self-reliant because they just don't trust the people who claim to have all the answers and solutions for all the problems.  They don't trust the elites anymore. They don't trust the ruling class. The ruling class has made a mess of pretty much everything."

How arrogant and nonsensical did the EU beaurocracy in Brussels operate? At one point they banned open jars of olive oil on restaurant tables. I rest my case.