What Australians do is use Australian servers
I'll always be found on an Internode server, unless I've got Friends in a GameArena one. Does China not have TF2 servers? There's a wealth of them in Australia, and no shortage of full ones. To find them I just go to the window with all the servers (at the TF2 menu) and have Country: Australia as the only filter, then hit refresh all.
Just because the US/Europe have the most servers is no reason to use them