It’s not the 1980s. Labour must unite to fight the Tories
That is, don’t set up the SDP and split the Labour Party.
Of course, this is worthy of wider consideration. To the point that no one should ever do anything that Polly has ever either said or done. It will be a bit of a pain to lose the words, and and to from the language but better that than any of her exhortations becoming true.