They need Zero Net Migration all over Australia, probably net emigration from Australia for Australia to work for the resident population of Australian citizens.
Immigration of recent times since 1980 has been appalling in consequence for Australia, brought disease, crime, gangs, murders, rapes, taken jobs, undercut wages, provided scab labor, increased social disharmony, reduced family values, reduced morality, lowered educational standards, created housing shortages, created congestion, shattered the environment and for what?