Two letters to the Guardian, from Cumbria and Oxford respectively, converge on an identical diagnosis: the Green Party of England and Wales has drifted so far from its founding environmental mandate that its own members can't find the words 'climate crisis' in its public self-defence. The trigger is a column by Zack Polanski, a former London Assembly member and deputy leader contender, published on 11 October. Polanski framed the Greens' recent turbulence — widely understood to involve allegations of anti-Jewish entryism — as growing pains of a party 'transforming British politics.' Neither letter writer buys it. John Foster of Hallbankgate, Cumbria, is the sharper of the two. He argues that Polanski's own priorities — 'populist foreign-policy posturing' and 'bashing the rich' — are precisely what created the conditions for factional entryism. The mechanism he identifies is displacement: when a single-issue party abandons its single issue, it becomes a vessel for whatever political energy is looking for a home. Foster also notes that Polanski 'isn't quite brave enough to call out' the anti-Jewish character of that entryism directly. Carol Peaker of Oxford delivers the same verdict more simply: 'Everyone seems to be talking about climate change these days — except politicians.' She viewed the Greens' electoral rise 'with hope' and found Polanski's defence devoid of the party's reason for existing. 'The Greens have lost their way.' The structural question here is whether mission creep in a niche party is a sign of political maturation or institutional capture. The Greens hold four Westminster seats after the 2024 election, their best ever result. The temptation to broaden appeal is real. But Foster's point is that broadening without anchoring produces hollowness — and hollowness attracts entryists who bring their own agenda. This is a recurring pattern in British minor-party politics. UKIP went from single-issue Euroscepticism to a grab-bag of right-wing populism and was eventually hollowed out entirely. The Liberal Democrats oscillated between policy depth and tactical opportunism for decades. The Greens face the same fork: remain a climate-first party with limited but credible appeal, or chase breadth and risk losing the one thing that distinguishes them. Neither letter writer proposes a remedy beyond 'refocus vigorously on the main point.' But the diagnosis itself — that a party's institutional resilience depends on mission clarity — is worth more than most op-eds on the subject. The readers, in this case, are doing the analysis the party's own leadership won't.
