Name one important issue where the EU has reached a satisfactory agreement and results.

  Free roaming within the EU
  Standardization of chargers for phones
  Free movement (including right to work and study) within most EU member states, plus I)celand, Norway, Switzerland and Liechtenstein
  Passenger rights for air travellers
  75 years of peace 

I could go on, but get the strong impression that any argument, no matter how persuasive, is just a waste of time, looking at your replies.