In 1944 at Bretton woods at the tail end of the 1933-1945 bankruptcy reorganization of the global trade system.

The USA was made the demand of the global trade system and the US Dollar was made the global trade medium of exchange.

Bercause England and the British pound was too small to be the demand any longer.

this worked great during the roaring 6 decades...

up until 2008 where the bretton woods global trade system began collapsing.

when it becaise impossible for US consumers to continue supplying US dollars to the world.

All that Germany is doing is switching to other currencies because there's not enough US Dollars in circulation to facilitate trade.

and if you are trading with China or within the Euro zone and you can facilitate it without a direct demand of US dollars...then this is fine.

just so long as you don't require US dollars...but because the USA is the third largest trading nation on Earth and the other two...China and the EU require the demand of US consumers to sustain their Trade...there is no escape from the US Dollar until the consumers of the USA eitehr stop consuming or can't.

Iran was cut off from Trude and their currency in relation to US Dollars is collapsing.

The US Dollar is still the global trade medium of exchange and it's not in any danger of collapse.

The only reason Germany is doing this is because there's not enough US Dollars in circulation.