One problem with monetizing the debt is the long-term impact. If that is the solution you're basically telling bond markets that lending to eurozone governments sucks.
Beyond that I'd point out that the 30s gave us Hitler and WWII. I don't want to be a paranoid alarmist, but seriously. We don't want to have those levels of economic distress again. We have enough fascism on the rise as it is.
Well sorry to be a bearer of bad news, but the social fabric of much of the EU is about to be put to the test. And radical beliefs will become more common as people look for people to blame. Now whether that is the wealthy, immigrants, capitalism, governments, people from a different part of the Eurozone, etc. things could get ugly.
Yep, I know. And it worries me.
That's why I still think letting the euro go is the best option for the long run.