When did I say it is not declining? In fact, I admitted it since I said we target 2% inflation. And look at that graph from after 1971- looks pretty damn good.
The USDX is vs. a basket of foreign currencies, which is more volatile than the basket of goods in core CPI or PCE. Anyway, stop arguing that gold is more volatile than the USD factoring in the Fed right now- it simply is not true. The numbers including volatility numbers are out there. The only thing you can argue is gold keeps its value better in the long-run, but as I showed that does not matter because consumers need relative stability in the short run.
You said the dollar is stable, decline is not stable, like a sinking ship is not stable