That link does not work.
It does not sit well with the latest Scanlon Monash foundation report into social cohesion in Australia. This is an annual survey into the measures of social cohesion - overall community indicators of satisfaction and wellness.
The most recent Scanlon Monash report was released on 10 December in Melbourne and is found here: https://scanlonfoundation.org.au/report2018/
Among other things, this report - which you can access via the link above - gives some overall results from the 2018 survey.
Net overseas migration has been the biggest contributor to Australia’s growing population over the last decade and had accounted for 62% of total growth in 2018 as at the end of March.
Over the last twelve months, immigration policy has been increasingly contested in politics and the media.
In contrast with many polls based on just one, or a small number of questions, the Scanlon surveys’ consistent and comprehensive questionnaire structure enables a nuanced understanding of shifts in public opinion in relation to immigration issues.
The 2018 report finds Australians continue to recognise the benefits of immigration, despite concerns over population growth.
X31 - here is an important statement supported by 11 years of surveys
Consistent with other surveys and polls conducted throughout the year, the 2018 Scanlon survey found an increase in those concerned by the level of immigration – up 6 percentage points to 43% since 2017.
But in line with the October Fairfax-Ipsos poll, and contrary to many others, it found that the majority of Australians - 52% - still agree that the immigration intake is either ‘about right’ or ‘too low.’
The report goes on to address immigration and the continuing positive outlook on immigration:
In 2018, a majority 82% of Australians agree that ‘immigrants improve Australian society by bringing new ideas and cultures,’ and 80% agree with the proposition that ‘immigrants are generally good for Australia’s economy.’
There remains a consistently high level of endorsement of multiculturalism, with 85% agreeing with the proposition that ‘multiculturalism has been good for Australia.’
X31 your link is a dead link, and there is no contextuality around either the survey you reference nor the report conclusions which you supply without supporting documentation. Your link does not work.