Accepting talos' polling as accurate - and I have no reason to think it's inaccurate ;-) - the majority in Greece:

1.  Don't trust the current political leaders

2.  Think there are other ways to solve the crisis

3.  Want to re-negotiate The Deal

4.  Think "deep changes" needs to happen

In my ignorance of Greek politics, I think that means it isn't going to be "years."  A year, maybe two, before things explode.

I agree the harm done in the process will be massive.

If it's any comfort, I submit the rest of the world is not that far behind you.

She believed in nothing; only her skepticism kept her from being an atheist. -- Jean-Paul Sartre