"United States of Europe" - whats you opinion?

A superstate in Europe is the worse thing possible. Interestingly, i live in the UK and i voted to remain (in the Brexit referendum) BUT the whole Brexit ;ordeal' has now dragged on for too long and we're at the point where we just need to leave. So whilst i wasn't initially a Brexiteer, i accept it would now be foolish to not proceed and leave the EU. That said, leaving the EU doesn't mean the UK is leaving Europe.
I personally feel that history has taught us that any superstate implodes in on itself because it can't possibly survive. The EU worked & still does to some degree because it's member states, when they get into a spot of bother financially (e.g.- Icelane, Ireland & Greece) the EU mechanism, as a whole, helps out and that's a good thing but becoming a complete superstate can't ever be good.