At the time of this writing, the United Kingdom has voted by a margin of 52% to 48% to leave the European Union. As far as I can figure, the motivation to do so was because aging racists were afraid of immigrants.
I lived in Scotland for a little while. Ask a Scot if they're British and the least that they'll do is laugh at you, so I won't pretend I've lived in Britain, but I technically lived in the United Kingdom, as it was. As an American in the early 2000's, well into the Bush administration, and months after Hurricane Katrina left a city of predominantly non-whites to die, I understood that isolationism and rejecting our planet truly is death.