Certainly the differences between the major parties in both the US and Australia are small in relation to what drives their policies and what it is critical to change for any significant improvement.
Unfortunately the electoral systems make it extremely unlikely that any minor party can achieve government, though I agree that can never change unless voters give them support. However, it is hard to persuade people to do that unless they see a significant prospect of it accomplishing positive change. Media ownership and skewed fear-mongering usually works against that. At the last Australian election, for instance, the Greens were the only party to put out a comprehensive policy platform but though they increased support, it was still far too little to give them any chance of forming government.
Certainly the differences between the major parties in both the US and Australia are small in relation to what drives their policies and what it is critical to change for any significant improvement.
Unfortunately the electoral systems make it extremely unlikely that any minor party can achieve government, though I agree that can never change unless voters give them support. However, it is hard to persuade people to do that unless they see a significant prospect of it accomplishing positive change. Media ownership and skewed fear-mongering usually works against that. At the last Australian election, for instance, the Greens were the only party to put out a comprehensive policy platform but though they increased support, it was still far too little to give them any chance of forming government.