Is anyone actually surprised by the weakening dollar? It’s the easiest way to pay off our debts. Raising taxes is too politically costly, inflation is so much easier. The signs that this is the direction we are headed became crystal clear last spring when the Fed stopped reporting the M3- the broadest measure of inflation- opting to keep only the narrower measures, M2 and M1. See the link below for a clearer explanation of this than I can offer.
The key thing to remember while dollar bashing is that other countries have problems of their own. Trying to pick a strong currency for your investments is like trying to pick the slowest sinking ship.