I'll turn your argument on it's head and ask isn't this 'destroy the village to save it' approach of the new management incredibly shortsighted and if this strategy fails all they are doing is facilitating more Tory rule?
My optimistic view on things are that this Tory govt is so shambolic that people would be prepared to elect a Lab government that is diluted socialism, and they can nudge left from there. Rightly or wrongly, I just don't think the UK electorate will go for a radical shift left. The media, as they did with Corbyn, would be screaming about us all ending up in gulags and make it a complete non-starter. It's a case of supporting what's least far away from my views rather than trying to vote for something that's perfectly aligned with me. And surely anything is better than this shower of shit, and Starmer seems best places to supplant them.