Pandemic Management bill. Health and well-being Act 2021.

[tonyo]

I saw two American flags but one was tied  to the same pole as an Australian flag.

But there were also the flags of
Poland
Greece
Italy
Croatia
UK
Cyprus

The Aboriginal flag
The Eureka flag
...and a boxing Kangaroo

Good luck working that out

The protesters are often quoted as saying 'the majority of people believe this, or don't want that.........'

Even when there are 'many thousands' in the marches, it still represents a significant minority of the whole population.  By having a widespread collection of symbols that everyone can recognise, it attempts to persuade the rest of us that their movement does represent a far larger proportion of society.  In reality, the only link to most of these symbols is that bearer happened to have one in the drawer at home, or popped down to Carroll & Richardson to buy one.