The ABC is under pressure to stop being far left. The Liberals see little value in funding their opponent's propaganda.
The employees of the ABC are slanted to the Greens and ALP. They largely have free rein to do whatever they want with taxpayer funds.
This is why the left winged parties support the ABC. The activists presenting programs will push the ALP/Greens narrative.
The ABC needs politically diverse opinions if it wants to keep its current model.
That means they need to drop their Greens supporting staff and replace them with Liberals and one nation supporters.
Anything short of that means the ABC is not a public organization as it does not represent the public. If the ABC wants to be unrepresentative, it should be private.
