The problem is that Greece, not matter how much they are squeezed can't pay back what they have borrowed. Unless the creditors are prepared to forgive a large percentage of the Greek debt, they will be back in a year or two doing the same thing and the taxpayers of the other countries of the Eurozone will have to fork out money again. Money that is used to pay the creditors, not the Greeks!
The only solution is for Greece to default (in essence declare bankruptcy) and start from zero debt with their own currency.
Germany has done this 7 times since 1800 and it has worked out well for them. With Spain and Austria, Germany is the pathological defaulter of Europe.
You are missing something important. Greece does not have the ability to default. Not in the way Germany did, or any other country that has defaulted.
The German defaults were on bonds owed to private companies and individuals. The Greeks owe governments money.
Forgive me for this poor analogy. It's similar to the difference of having a bank loan, or private loan of some sort, and having a Federally Insured student loan.
With the private loan, you can make the choice to default, and intentionally force your creditors to restructure the debt. That's what "strategic default" is all about. And the reason why you can do this, is because there is an authority above the creditors, namely the Government, which will arbitrate between you and the creditors.
But what if the creditor *IS* the arbiter? What if the there is no authority over your creditor? Who arbitrates between you and the government, when there is no higher authority government?
This is why you pay back 100% of a Federally Insured student loan. You will either pay back every penny with interest, that you borrowed under a Federal Guarantee, or you will carry that debt until you die.
Back to Greece.
If you look at the chart on page 1 of this thread, only about 22% (roughly) of Greece's debt, is owed to private institutions, the majority of which is owed to public within Greece. Defaulting on pensioners and unions, and voting citizens would be horrific politically, but worse, it wouldn't solve the problem.
78% of Greece's debt is to other GOVERNMENTs. It's not bankruptable.
The IMF is not bankruptable. The ECB is not bankruptable. The Eurozone is not bankruptable.
Greece has absolutely no way of forcing the IMF, ECB, or the EU, or any of it's governmental creditors to take a hair cut on their debt. Not even if they ditch the Euro, and start over with their own currency.
Starting over with the Drachma again, doesn't make the debts they owe any less. They would still owe everyone billions of Euros of debt.
They would still owe everyone, everything they currently do, but the economic consequences would be horrendous.
Tariffs on exported and imported goods. Cost of living would drastically increase throughout Greece, as retail prices jumped by at least 1/3rd, if not more.
The drachma would drop in value like a rock. Investments would leave the country, as would jobs.
The economic crash in Greece after being forced out of the EU, would make the economic recession they have dealt with up till now, look like a bad hair day.
Ditching the Euro, and leaving the EU, would simply make paying back the debt even more difficult, because they would have to purchase Euros, to pay back the debt owed in Euros, with Drachma.... which would fall in value you like a rock.
Honestly, it's hard to imagine what possible bright side would result from this course of action.