It will be at least another forty years, if ever, before the left regain the upper hand in Labour. Starmer's coming purge, using the leaked document as a cover, will see to that.
Why bother sitting in the cheap seats when you can all just up and leave.
Join the Socialists. Form your own workers party. Bring together all, or as many as you can, left wing groups under banner.
The time of Labour being "the only alternative" to the Tories is finished. Time for a break and a re-alignment.