>>Also, in the US, they have hordes of mexicans running across the border.
>>In Australia, we have a skilled migration program.
> 
> 
> Just like almost every other developped nation.

Australia does not have hordes of illegals running into our country. 
Those that try get locked up.

In the US, immigration has depressed wages. The Australian minimum wage 
is in fact higher than the US min. wage - even just with a crude 
currency conversion.