I'm not German and I don't see why it would have anything to do with that.

"Living about their means" is what happens when their debt levels grow exponentially:

https://2.bp.blogspot.com/-7KXHAuORi4w/TbS897oFTGI/AAAAAAAAA...

in what world do you think this is sustainable? The US can get away with huge amount of debts because they have the dollar, which the most trusted international currency for virtually every commodity trade. Other countries don't have that luxury.