I'm with you about the authoritarian purging of the party. Nevertheless, with the size of the majority that's being predicted it will be hard to keep so many people in line once they have gone from being candidates to actual MPs. The biggest opposition in parliament may end up being socialist rebels within the Labour party itself.
Labour tried to do things the proper way under Corbyn and got completely destroyed. Back to lies, treachery and 'Realpolitik'. The fact is that after all the u-turning that Labour's leadership has done under Starmer, nobody can count on them doing anything. That includes the corporations and financial sector, who are just as likely to be getting played for fools as the rest of us.
Same thing we've got, except it's corporations doing it to us.