Working-class people are sick of being called ignorant or racist because of their valid concerns.
Source - http://www.theguardian.com/commentisfree/2016/jun/15/brexit-working-class-sick-racist-eu-referendum
People living in the EU have the privilege of voting in referendums to decide their future.
In the US we have no such privilege. According to the First Amendment we can petition the government for a redress of grievances, but such petitions are nearly universally ignored by said government.
The living dead (a.k.a. corporations), on the other hand, can tell the government what to do, and their demands are nearly universally met.
We The People have no representation in the US government. Isn't it about time we did something about that?