The EU is not one country.
It makes sense to me that there are people who would like to have an EU-like entity here, perhaps to include both North and South America.
Are you suggesting that no one in academe, government, business has ever even expressed the desire for it? That no one is acting on it?
I say that they have and I say until the cesspools we call countries get there acts together -- NO WAY do I want the United States of America debased by such an association.
They do have one flag, court, central bank and parliament. With NATO as the leader conducting EU security, the "EU Army" have been sidelined, but still a goal.