The Petro Dollar Scam

I recently got a mail from a friend about the PetroDollar Scam. I was completely astounded by its content. If what it claims is correct then a lot of my perceptions about the United States will have to change.
Firstly, we all should stop looking at the US through the lens of Hollywood, completely altruistic, and self righteous. What we to realize is that the US has never been dragged into any war thus far. They have had an underhand interest in all of their recent military incursions. They talk about the sovereignty of Georgia that Russia had recently pushed back. Georgia has always kissed the great big American ass and yet they were unable to get any help from their godfathers because Russia has recently emerged as an oil supplier. For a country that consumes over 25% of the world's oil supplies that is major incentive to not act!
Secondly, we should stop asking for US intervention for every goddamn issue that folks in a country have with any other country. Successive Pakistani governments have surreptitiously sought and received American help in the form of military aid, in the form of aid against Taliban(which the US itself supported at one point in time to chase the Russians out of Afghanistan). The global community must stop things like this from happening. American foreign policy has always been one to support its own ends in any local mess, even in Iraq. Under the veil of "restoring democracy", they have attacked sovereign countries. They have invaded invalid countries such as Nicaragua and Vietnam, getting the permissions for those wars from the Congress by depicting a false danger in the form of the US being "run over" by Nicaraguan Contras or the Commies in 'Nam.
Finally, I would really like to see ONE solid reason why we all trade in US Dollars when the currency clearly has no value. What will they do when folks come around asking the Fed for the real value of the US Dollar in gold? Is it that because they have an ulterior understanding with the Sauds, the rest of the world should keep the USD in their Forex? A currency that cannot stand for itself in the standard that is followed in the rest of the world? What are we so afraid of? Upsetting the established World Order? Have we asked who established the "world order" in the first place? Why should the rest of the world pay for the American Glutton so that he can have Mac Burgers n Fries to go, for free?
Don't get me wrong, America is a great country. A country where anyone who can dream it can do it. A country where the human will overpowers any other will. Inspite of all this, one must keep in mind what flimsy roots this country is standing upon. A house of cards, in due course, must collapse.