The immigrants question has several sides. What people don't want (but aren't allowed to say) are Allawabbas setting up home, not integrating, the wife not working, and then having a family of nine kids. Temporary workers, which are needed, and which are the majority of fruit pickers, have to get up early, work in fairly rubbish conditions for low pay, but get to take the money home and with more in their pocket than a shit job in their own country. Nurses are also needed and get more permanent status and immigration job points. It's a simple equation that Australia I think has had for years: let in the people you need and keep the others out all but really exceptional cases.
Truck drivers aren't that badly paid -- 78K I think is mentioned -- but they took a big hit when the tax rules changed and they couldn't stick tax-free earnings in dividends, thus in effect taking a pay cut. Ok job if you enjoy being independent and travelling. Major drawbacks if you are addicted to home life or don't want to live in a box while on the road for several days.
The other thing we need IMO is highly trained scientists, mathematicians. Some of those could and should be fast-tracked from Hong Kong. Yet for some reason there seems to be a wide open door for anyone simply in the name of 'uman rites...