Not the topic at hand but sure.
All those governments you listed were modeled, in part, by the ol Dead Presidents of American lore and the brilliant Iroquois Federation.
But yes, partially those are true, but those national governments behave much differently than the US's. Birmingham's county is not an independent state from Manchester. The meaning of United States is lost in it being the name but we are a federation of countries ie. a bunch of countries inside one big one.
And we are special and different at good, bad, and evil things. Always to the maximum it seems. I know it must be such crackup to laugh at America... And fair enough we all do it. But when outsiders do it based off ignorance, complete ignorance, it makes me go ballistic. Your Freshman level dig proves my point so fucking hard its hard to breathe, with the exception of Spain because it was just so stupid as to be a non-sequitur.