Hajji,had (excuse the pun)you not only have an incredibly generalistic view of the female population but also an apparent very bigoted belief that these generalisations are 100% true. How deluded !
We all have a choice and I can honestly say that I have never met any "Aussie chics " that fall into the category that you describe .
I would suggest that you change the people that you socialise with as they obviously reinforce such a generalist belief.
Seek and you will find , so if you look for the negative you will find it , which will reinforce the belief.
It's a vicious circle Haj.
Look for the positive and you will surprise yourself.....only if you allow yourself to "believe" it is possible.
