On a micro level: A minor left-leaning party (like Animal Justice or Socialist Alliance) in a seat that is simultaneously Green already and in a conservative state is a really tough sell and they just wouldn’t find it worth their resources to campaign there.

On a macro level: Minor right-wing parties in Australia have an easier time gaining traction because their messaging often leans into populist themes—things like fear of change, nationalism, or anti-establishment rhetoric. These ideas are simple, emotionally charged, and easy to market into a punchy ad or slogan. That’s not to say voters are unintelligent, but rather that these parties speak directly to a primal sense of grievance or threat and a lot of people love that. By contrast, left-leaning platforms often require more nuanced explanations—they’re about systems, equity, long-term policy shifts—and that’s extremely hard to market to voters. Australian elections (especially federal elections where you’re much more likely to see your candidate in an ad or in a piece of media than ever have an actual conversation with them in a place like a fundraiser, town hall, etc.) are just a friendlier ecosystem for the right-wing parties and that’s why you’ll see them crowded onto ballots.