Labour wont get 500 MP’s.
Dont get me wrong I can see a scenario, maybe 3 years in where everybody starts to get vocal particularly if Starmer and Reeves are still cautious, the country hasnt seen any decent turnaround and thats ignoring the myriad of international issues that may arise. But it will be pretty harmonious for the first few years.
You don't know that. But okay, let's be prudent with the numbers and suggest Starmer "only" gets around 400 MPs, which is 1997 territory and quite in line with the more modest poll predictions.
It's the same scenario. A rump of left wing morons who don't think the government are doing things the way they think they should be done; and unlike the Tories, there's not enough of them to influence policy. So they can either kick up a fuss on the back benches like urchins, or breakaway and form an independent "left wing" pressure group in the commons.
A group ready and willing to criticise the government with a right wing media only too happy to give them air time. Not because the criticisms are valid, but more a "Labour are bad and look how much worse these lunatics want to make things" kind of way.
Would it work? Probably not. Because outside the party they can't influence policy. They don't wield the influence of Reform UK. But that doesn't mean they're not dumb enough to try if they think Corbyn is still the answer.