POG's you so well demonstrate the decade long factionalism of the Parliamentary Labour Party in your above post. That has been in stark contrast to the unity of the trade union movement over four decades when over fifteen anti-trade union bills have been brought forward against them.
The above is, I feel, the reason why a growing underline debate has gradually emerged in the wider Labour movement in regard to the future relationship between that sector and the Parliamentary Labour Party.
There are undoubtedly many senior lay activists in the trade unions who are prepared to give Starmer a fair chance in trying to create at least some unity in a parliamentary party that in the last decade has in all fairness not been fit for purpose.
However, I believe that many feel that the relationship between the broader movement and the Labour Party has perhaps "now run its course", and to that view, I would add myself
While Starmer tries to rectify his squabbling MPs the debate elsewhere may well be in regard to what can be brought forward and funded to replace the current Parliamentary Labour Party.
But that is an entirely different debate POGs, and there are a number of views on the matter.