I couldn't find a clear definition for superstate, so I retract.
My point is most institutions are bottom up not top down.
- the EU can't start a war or stop a member starting one ( like UK vs Iraq)
- the EU can't stop windy city boys causing a global financial crisis
- Europol can't arrest a London lawyer engaged in tax evasion schemes on British territory like Guernsey
- the ECB is controlled by a council of representative of national central banks.
Contrary to this
- Washington is able to stop Texas invading Mexico,
- the FBI can arrest criminal bankers at Wallstreet
- Dollar is not controlled by a council with representatives of a hypothetical California or Missouri central bank.
Finally the number of civil servants working for the EU is comparable to the one of the Birmingham City Council, not more.