This is not baying for blood. There are only two ways this can go. Take this 5, 10, 20 or 50 years down the line with Greece still in the Euro and it's clearly untenable. Something's got to give. It was a massive error to join. That error needs unwinding, somehow.
As I see it: Greece should never have joined the Euro, not much has changed since they did join, therefore they either need to change or leave, genuine change is highly unlikely, therefore probably best if they left and we get the consequences of that out of the way sooner rather than later.
If there was no Euro and Germany still had the Deutschmark, German products would not be so cheap around the world. The rich Euro countries, particularly Germany and France, have had an export bonanza on the back of a low-value currency that the poorer countries like Greece have been paying for. The richer countries will not see it this way, of course, but they really owe it to the likes of Greece to help them to exit the Euro ...