There's no boundaries to "ever closer union". That's what ever closer means, definitionally.
Nobody was duped into anything, countries exercised their sovereignty to come to an agreement.
The rest of your concerns is just how literally any legislation and treaty ever works. When did you sign on to your country's constitution? What about the treaty of Bern establishing the Universal Postal Union in 1874?
Nobody was duped into anything, countries exercised their sovereignty to come to an agreement.
The rest of your concerns is just how literally any legislation and treaty ever works. When did you sign on to your country's constitution? What about the treaty of Bern establishing the Universal Postal Union in 1874?
Key concept here is legal succession.