An explainer...

On the HBO television network Jon Oliver  refutes each argument for Britain leaving the EU, and he bolsters his point by offering several examples of blatantly racist comments by members of the UK Independence Party, which has pushed for a Brexit.  "To recap, immigration policy may not change, hysteria over regulation is a red herring, the costs of membership are reasonable, and the economic benefits of staying appear to outweigh the costs,” Oliver says. “And yet, polls suggest, my homeland is on the edge of doing something absolutely insane.”