Those two suggestions are brilliant and the markets would rally large!
Unfortunately the credit rating of the US would tank and the currency would plummet and China would be very upset. All the tanks, missiles and soldiers in the US would not be a match for an angry China that is owed 10 trillion dollars. Mandarin will become part of your curriculum.
China has warned the US to be very careful with its policy changes. They are in no way of support of a lower US dollar. Their currency holdings would be decimated. How would they build their country!? Heheh We are paying them interest to allow us to survive on life support.