The Lexit people are even more detached from reality than the Ukip people. They claimed that the EU was stopping socialism in the UK, but voted to hand control to the Tories who are even less likely to support socialism.
It’s both. I have seen stuff from the crank left that would not look out of place in a conspiracy theory featuring George Soros, except it’s about capitalism instead of socialism. If they didn’t exist then I doubt that it would have got as far as it has.