The other issue is that the Australian population is far more concentrated in state capitals than in other countries, Queensland aside. If the Liberals wrote off Sydney, Melbourne, Adelaide and Perth they would mathematically be locked out of rule in those states.
Australia is one of the worlds most urbanised countries, that means that any competitive party has to be able to win over urban voters.
https://www.yapms.com/app/?t=Australia_house_of_representatives
I toyed with this, created a "Bogans and Miners Party" colored purple, gave it everything besides the insets, and ended up with only 48 seats, roughly 60% the amount needed for a majority.
And that's already including many districts located along the coast that are basically urban, and outer metropolitan.
Stuff like this is why I always get confused when people assume a GOP-style party would do well in Australia. The Coalition hold far more upper-class "liberal" electorates than Labor do Red Wall style ones. Even the likes of Newcastle are still largish cities....
There’s people who think the GOP would do well in Australia? They high? I’d say a 2020-2022 Romney is about as far right the coalition goes, with the most left wing coalition member being somewhere similar to a moderate Democrat. Long story short, the coalition would have a mix of moderate/ liberal GOP type senators and moderate Dems. Labour would definitely be your more extreme Dems in the US and greens would be something left of AOC. Your more conservative/ liked Republicans wouldn’t affiliate with liberals, they’d be more in line with fisher farmers or one nation as would most American Republicans