But the mood is shifting.
Enter Zack Polanski, newly elected leader of the Green Party of England and Wales, and possibly the most media-savvy figure the Green Party has put forward recently.
He communicates with the clarity and charisma of someone who actually expects to win
Polanski is an unusual political creature: openly gay, vegan, and rooted firmly in the progressive wing of British politics - and yet, unlike past Green figureheads, he communicates with the clarity and charisma of someone who actually expects to win. His worldview is unapologetically radical: he links the climate crisis to everyday precarity, arguing that no one can think about ecological collapse when they can’t afford heating or rent. His platform marries classic Green politics with a blunt economic populism and a foreign policy stance that rejects NATO, questions the UK’s alignment with the US, and demands that the government name Gaza a genocide.
And he’s not shy about the scale of his ambition. “We’re not here to be disappointed in Labour — we’re here to replace them,” he declared after his election. It sounded delusional at first, but the numbers soften the cynicism: party membership has surged by 70% in a month, climbing past 115,000, and he’s already flirting with overtaking the Conservatives in member numbers and Labour in the polls.
So, what does Polanski mean for the Labour Party?
Labour used to a home for left-wing voters, and yet recently, the party and its voters don't seem to recognise one another. Polanski, on the other hand, is unapologetically radical - Pro-Palestine, anti-NATO, pro-proportional representation. He is charismatic, articulate, digitally-aware, but at this stage, Zack Polanski is only a narrative threat to the Labour Party, not a numbers one.
The problem is that the Green Party is a small horse running a big race.
And while Zack Polanski may attract a younger, more radical voter base, his views may also alienate an older, more middle-class voter. They might align themselves with the environmental stance of Polanski's party, but be turned off by foreign policy upheaval and his economic stance.
It's early days for Polanski, and he isn't likely to flip the party into a major electoral force overnight. What he can do, however, is to turn the party from a protest movement into a political contender.
In order for the Green Party to capitalise on their growing popularity, they must accept that charisma is only part of the picture. Polanski is fresh, radical, and interesting - but he is not a silver bullet.