In fairness, from the perspective of the average Greek citizen, the EU thing hasn't worked out terribly well for their homeland.

In the West what we need is to restructure our facilities such that if you participate you will prosper. We need for everyone to prosper. Not necessarily equally, but what happened to Greece went beyond simply not prospering as much as other nations. It was legitimately negatively impacted. (A lot self inflicted, but a lot inflicted by the structure of Western trade facilities as well.)

Having mentioned all that, I grant you, having all parties prosper at EU scale is a little difficult to pull off.