The English used to complain about the Romans, Vikings, Normans, Hugenot, Irish, Scottish, Germans and even Australians in more recent times.

Not sure what threat permanent immigrants, or more significant numbers of temporary residents have on Australia?

Without the latter churn over of net financial contributors, our tax base would decline through an ageing permanent population requiring pensions, health care and related services; unless taxes steadily increase for working age?

Andras Smith,
I didn't think there'd be a need to actually spell it out but here it is for people who don't read between the lines.
Runaway or unwilling integrator immigration i.e. as the case is in Britain & Europe. Soldiers of disunity !

https://www.theage.com.au/national/victoria/man-attacked-after-whittlesea-mayor-s-flag-waving-stokes-up-balkan-tensions-20191218-p53l7x.html

Is that the kind of nonsense what we need here ?