Earlier quoted context omitted.
I believe OP was talking about trade throughout the world.
The USers should learn that there's a other continents, let alone countries. Do they not teach geography in primary schools there? Whenever I post sth about a global problem here there's always some people coming up with links to some data or wiki page on the instance of that in the US, which give me cringes.
Because of HN's origins, it's often the case that there's some ambiguity about whether a statement is scoped to the US or more widely. The fix for that is disambiguation, not taking or making insults.