If the EU becomes an actual state then it can be sovereign, but then it means that member states won't be sovereign anymore as they will no longer be independent states. This process is already in progress.
The EU can be said to be sovereign in some limited areas without being really sovereign, though. We say the Schengen agreement sets border law, even though countries often set up illegal border checks.
This is just way too close to the nationalist-wing ideology of the 2nd International. Combine that with the overall strong shift left during the last 30 to 40 years and the staggering unawareness of the ideologies of the Internationals (beyond buzzwords) and you've put yourself on a path for repeated history.
I think that such discourse are FUD to prevent any advancement of European integration. Without such development small EU countries would be dependent upon the will and need of Elon Musk or the american DOD.
> Without such development small EU countries would be dependent upon the will and need of Elon Musk or the american DOD.
Speaking of FUD and false dichotomy...