Exactly. The EU wants to convert a group of independent sovereign countries into the United States of Europe.
Well that's certainly the anti-EU propaganda that's been put out by Eurosceptics since the UK joined back in the 1970's.
Of course the EU wants greater cooperation between the members of the European Union for economic, political, security and diplomatic reasons but so far there's no indication that there will be a single state from mainstream politicians.
Even contentious things like an "EU army" turn out to be something completely different to the claims of the Eurosceptics. Instead of the threatened continent-wide martial force in which individual countries lose their own sovereignty and armed forces, it's an agreement between two countries (France and Germany) to invest some money in improving interoperability between there forces.