- simple majority needed to form
- 2/3 majority needed to organise a general election
So the numbers could be there for a GNU but not a GE.
But that means the LibDems, rebel Tories etc won't risk putting Corbyn and Labour in charge.
But the alternative is to be stuck with Corbyn and Labour in charge until 2022, while the Tories laugh themselves silly at all the unseemly opposition infighting.