The left holds all the cards in Australia. Unlike America, we do not have a large rural population. Our population is concentrated in highly urbanised coastal cities. This is a breeding ground for leftism to dominate.
Secondly, when it comes to the politics of urban Australia, there's not a conservative vote to be found. Working class areas will always vote Labor. Why? Because working class areas in Australia are full of deadbeat single mothers, immigrants and welfare recipients. All 3 groups have a vested interest in draining the tax payer for as many handouts as possible. So they'll just keep voting Labor.
Then you have the middle class, which used to be the swing vote in Australia. But, with the middle class shrinking rapidly, their vote means less and less. Not only that, but the middle class is now entirely comprised of pro union tradies, who will vote Labor because their union told them to, and with the other major group in the middle class being Chinese immigrants, they'll always vote Labor because Labor is slightly more pro China.
The upper class? Once reliable conservatives, but are now just comprised of smug boomers and brainless stay at home, range rover driving soccer mums.
They won't vote Labor, because Labor will increase their taxes. But they want to look "trendy" and "tolerant" - so they'll vote for the Teal moderates who are female climate hoax peddlers, but unlike Labor, they don't rub shoulders with the smelly working class. So these teal moderates makes upper class yuppies feel safe and cozy.
Then you basically have young women, uni students and homosexuals who will vote for the far left Greens.