https://immi.homeaffairs.gov.au/visa...ccupation-list plenty of immigration for the untouchables you suggest.
Perhaps the reason its hard to get a tradesman to do a job for a 'reasonable' price is because an entire generation of millenials were convinced they had to 'go get educated' at a university to get a good job.
What is 'reasonable' anyway when the average rental costs per annum for a house would eat up almost half of what the air conditioning installers are getting paid, your implication of too much ?
Should Australia do an UAE and import millions of workers from 3rd world countries to live in shanty towns on the fringes and do the lower caste roles in society that involve going outside and using your hands - whilst the educated class yuck it up after a hard day of posting your day in the life videos to tiktok ?
If you're not being paid enough go do something else that does, like installing commercial air conditoners or being a heavy diesel mechanic, you know, overpaid, uneducated easy work.