If labour don't fall below that, it might be alright. If they do, it's all fucked.
There's still a way to go stop Brexit itself. One step at a time. And the next step is to prevent the Tories forming a government
Then it's a competition to see who can form a government, and Labour will have to offer a referendum as well.
If either Labour or Tories win a majority we leave.
See? It's easy.