At what point will the EU recognise the futility of continuing with the Euro and their integration projects...by "democratic means"?

The best case scenario is the total collapse of the Euro and the EU.  This scenario is the one the French were banking on, that the Euro would deliver integration. Integration is a core belief and the Eu wont let go of this.  The Euro cannot succeed without integration and this was known at the start.  The problems that would ensue without it were known with uncanny accuracy at the start and they went ahead.  This latest situation is the EU still clinging to the belief that somehow or other they can force regime change (to who? to one of the EU puppet parties that Syrzia displaced?) that the project will continue till everyone agrees to hand over sovereignty. This will then rescue the Euro.  But even though the Euro has caused such problems the PIIGS were not amused by Merkel's 2011 call for integration and hence austerity measures designed not to help but finish the job.  And what success have they had? Ireland is even doing rather well .... but only for so long as they can set their own corporation tax. Italy SPain and Portugal seem to have become accustomed to the austerity measures so no doubt the EU is intending to tighten up. Or it was before Greece elected a "populist" party.  But the EU cannot allow for any country to recover from the damage of the Euro except through integration and they cannot accept any other path unless they give up on the idea. That they will not do if we consider the very timely publication of the new blueprint on integration published by Junkers Dieslbloem Tusk et al. and this surely must make clear to Cameron that his hopes of reforms and repatriated powers are a nonsense even if he were Tsipras which he is not.