Here the left extremists wants to leave EU
That is the same here, although whether I'd call them extreme or not is open to debate, Ken Livingston, ex Mayor of London, certainly wants out. Current Labour leader and the shadow chancellor, both on the left of the party, presented a facade of luke warm support for Remain, but six months ago were both anti-EU. Many believe** that their lack of engagement was a key reason for the Leave result.
Edit: ** well that, and a whole other bunch of reasons, like uneducated proles, old people, gullible ignorant tw**s (that one appeared on my FB feed, nice), "those people" (and other such prejudgmental monikers), the list is longer, but you get the message. What you don't hear much about is that there were two crap campaigns, just one was more crap than the other. A lot of people seem to have suddenly misunderstood how a referendum and a democracy works.