Every central bank wants a weaker US$
Every central bank in the world, including the US Federal Reserve, now wants a weaker US$, which proves that central banks can be overwhelmed by market forces even when they are united in their goals.
Central banks outside the US want a weaker US$ due to the long-term consequences of the actions that they themselves took many years ago to strengthen the US$. To put it another way, they now want to strengthen their own currencies against the US$ because their economies are suffering from the inevitable ill-effects...
....related: James Dines on the US Federal Reserve: