Brexit has a conotation as being anti-foreigner, but it actually was also a "Anti-London-Elite" campaign, who is largely behind the focus of the whole country on becoming one huge tax fraud financial haven.
Its the voters right, to try to regain control of his/her country, by rejecting those that take it for a undemocratic spin, no matter how clever that hijacking is marketed.
England suffers from a resource curse, the resource being its ex-empire and the financial connections of the comon wealth.