The entire world is being impacted by the collapse of the Greek economy. There is no doubt that Greece has run up enormous debts due to one government after another which simply refused to tax the wealthy and offered very good pensions to its citizens. Despite demand by the European Union to get serious and tax those with wealth, Greek governments insist they want to be bailed out. In fairness to the people of Greece, once upon a time, they were generous to Germany.
Chancellor Angela Merkel has every right to demand action by Greece. But reality is that over 30% of Greeks lack a job and pensions are declining. After World War II, Germany was in an economic mess. It had committed, not merely atrocities against people, but it had wrecked the economy of nations such as Greece. In order to assist German recovery, Greece was among several nations that cancelled German debts! It was the ability of Germany to restructure its debt that enabled Germany to become a great economic power.
Seems to me that Germany does have a right to demand Greek action to make the wealthy pay up, but it certainly means that Germany should provide Greece what Greece provided it.