Building things too far from the real markets is very costly. Australia has become a very expensive place to do business. All inputs from cost of labour, costs of Govt [CASA etc etc], and other issues including shipping and ferrying create a non-competitive financial situation. Even Boeing moved to South Carolina for the B787-10 and other bits to save on labour costs and other taxes from Washington...[non-union too]
Australia cannot compete on a global market [and our domestic market is minuscule] in any manufactured..