True....to a degree. Our agriculture exports would soar. But alot of other things we produce are complex/advanced products, which depends on cheap parts/oil from....other countries.

As for the military, well, China will pick a good time to crash the dollar (when they've liquidated most of their dollar reserves). Then they'll be able to bring US to its knees without firing a single bullet. Why shouldn't they? it's their turn to be the empire.