These last two posts are quite accurate.
The market size and dynamic of the US economy is far more fluid that the Australian market.
Yet it has been accepted that imports to post holder positions here were needed… that was indeed downward pressure on conditions. It is often not that there is no one willing to do the job. It is more likely the risk reward equation was markedly skewed.
Some of those that weaseled in obtained permanent residency, ergo mission accomplished for lifestyle and retirement. Just outright pain left in the wake.