I dislike current populist Greek government (and live in Germany), but there is some injustice in what was done to Greece in my opinion.
Greece f*cked up big time by spending more than earning, there is no question about that.
The problem is, what happened afterwards.
And that was new loans AT INSANE RATES.
Last time I've checked check dept per citizen numbers, Greek was roughly on the level of Germany.
But interest rates they are paying (and that mostly to German banks), oh my goodness:
So there IS a combination of incompetent reckless government and unfair interest rates. (yeah, if you don't want the money, don't take it, yadayada, I know)
Also see (Charges of hypcrisy (Germany))