I share legitimate concerns about the Australian federal government's moves in recent years which show a lurch towards the surveillance state and authoritarianism. The points you raise which are related to regulations surrounding the response to COVID are needless fear-mongering however.
Yes, the rights of the individual with respect to movement and to assembly are important. But, so are the rights of citizens to not be infected and be put at risk of hospitalisation and even death.
So, a (temporary) regulation to limit the spread of COVID by reducing the number of people you can have in your home is acceptable in the same way that drivers are forced to drive at 40km/h around schools and playgrounds.
The great majority of Australia's citizenry understands this trade-off, thus supports the (predominantly) state government efforts during this time of COVID. And this support has been shown to provide health dividends; which, astonishingly, even the anti-lockdown Murdoch press seems to be grudgingly accepting:
https://www.news.com.au/lifestyle/health/health-problems/cov...
Being in the middle of an epidemic changes the norms as far as regulations go, in much the same way that such norms are altered during times of war. Citizens know these changes are unpalatable, but also know the alternatives are worse.
EDIT: typo.