There is more than one country in this world that calls its currency ‘dollars’. The U.S. is falsely claiming that they alone own the rights to using that term.
How can anyone disagree? Unless he works for the US Govt.
If you put “dollar” on a silver coin, expect to get hammered.
Put “one ounce .999 fine silver” on a coin, and sail blissfully along.
Some fights are not worth fighting. Like, taking on the might of the US Govt by stamping “dollar” on a privately-minted silver coin.