I certainly agree with the MO of inflation in Greece pre euro. I'm not sure about the real unemployment situation, but I only know about a few islands, not the mainland. There a lot of people work cash in hand in the tourist trade, they are technically unemployed (and their businesses pay very little in taxation as most of the money isn't declared)
Greece should never have been allowed into the euro in the first place. The EU is essential for Greeks, many of whom have gone to other parts of the EU to work, just like Americans left Detroit after 2008.