You should learn about history before you go talking trash because it makes you look petty. Thousands of American servicemen have died defending Australia from invasion.
Last time I looked there wasn't much, if any oil in Afghanistan. Seventy three percent of US oil consumption is produced domestically and the bulk of US oil imports comes from Canada. So you are really making no sense whinging about oil.
The Chinese sent their first aircraft carrier out for sea trials in August and there are more on the way. It isn't going to be another twenty years before the balance of power in your part of the world changes.
You Australians are lucky America is willing to station some marines there to protect you.