Population of the EU is over double that of the USA..so nice try.  If they don't watch it other countries may start selecting another currency as the standard and why wouldn't they.  I was surprised to know they are no. 3 in oil production, but you are correct.   Retaliation.  Yes, they can act big for a while but you somehow think everyone else is an idiot outside of the USA...but the mere fact they voted for Trump would suggest they are.  Next decade China will make more gains globally than the USA and it will be thanks to Trump that in 20 they are the world number one super power.