As pointed out to your welded shut mind repeatedly, our National Interests have NEVER been limited strictly to our own borders.
Like it or not the free flow of oil from the ME is a vital US economic interest. Anyone who does not understand that painful, unpleasant fact is too utterly moronic to be allowed vote, much less be President of the USA.
Should we be energy independent? Heck yes, but untill the moron clown posse in Congress, including Dr Paul, get their heads out of their collective asses and develop our own energy resources, we are stuck needing Arab oil.
But a guy like Paul would absolutely let us develop our own energy resources. So the need for mideast oil is to a degree artificial.