In times gone by, I might have agreed with the concept. But not since the once-proud Aussies allowed themselves to be disarmed.
There are at least a million legally held firearms in private hands in Australia.
Personally, I have one of these:
and one of these:
as well as a number of basic hunting rifles. And I could own more, but I've only got two hands so these will do.
It's certainly not rosy here for gun ownership - universal licencing and registration, for example - and my handgun is a .38 because having anything heavier is complicated for reasons that make very little sense. But we're not disarmed, and plenty of places in the US has some stupid rules as well.