Daytr is very firm (overfirm as usual) that the Australian economic problem is not due to unions (see also corruption in Australian unions and disproportionate union influence in the Labour Party and Labour Party selection) but to the fall in iron ore prices.
May I offer the revolutionary idea that it is due to BOTH!
And if you assume 50% each then you don't have to argue which one is bigger but you then have to address both instead of just one.
I suggest a lower Australian dollar combined with some Maggie Thatcher union legislation.....