Well yes the US has wanted it but never actually threatened to invade it before.

And no I don't think it's a good idea for Europe to become a federated state. The US' current situation shows how bad that could turn if the wrong person is elected.

At least we have the national governments here as a safeguard and we can also leave the EU if needed.

And yeah I didn't name India as a possible partner because they're too close with Russia. The EU is trying to make some deals with them but it's a bad idea while Modi and the BJP in general is in power in my opinion. They're similarly bad to minorites as the Chinese.