Yeah, I've heard this interpretation before that this is the US trying to wean itself off the resource curse bestowed by a strong dollar. I think it's a fun idea, but there is no reason or strategy to this, I'm afraid. Just stupid people doing what they do best, doing stupid things.
I agree, the whole thing is stupid. But, when you don't have a healthy, educated society, they wind up being easily conned into electing stupid greedy people. So it seems that the resource curse may lead inevitably to systemic failure. Good times make weak men.