Greece actually was doing
ok before the Euro even though they never produced anything of value. Tourism was basically enough. What they
had, that they've now lost, is control of their own currency and sovereignty. And if you control your own currency, you can
at least inflate your way out of some debt.
At least you could do that, yes? And then - boom - your country just became a cheap tourist destination and cash starts flowing in.
Now, the Greeks don't even have that. They're basically a collective EU servant class. Portugal is in the same boat. Italy is not too much better.
That's your precious EU with a single-currency-under-German-control right there, Bud.