This entire mess started with Greece not having its finances in order, and essentially lying about this for years to the rest of the Eurogroup. After it became clear how dire the situation was, the Eurogroup stepped in and helped Greece by giving them money (LOTS of money). Had the Eurogroup not done this, Greece would have defaulted on its debts years ago, and the country would have gone bankrupt.
Now if someone offers to help you by giving you money, provided you meet certain conditions, you can either accept and comply with the conditions, or you can refuse. The fact is that Greece gladly accepted the billions upon billions of euros, and the conditions that money came with.
I am fully aware that the measures demanded by Greece's creditors are tough. Some would say it is doubtful whether they are actually effective at all. And the demanded measures are certainly driven partly by political motives. All this is true.
But it is mind-boggling to me that after the Eurogroup provided several hundred billion euro's in aid to Greece, anyone would turn around and claim the current crisis is in no way the Greeks' own fault.