So, you are basically proposing that Germany should ruin its own economy just because some countries irresponsibly spent more money than they had, and are now in debt?
That would make crisis even worse for everyone, and I can't see why Germany would do something like that.
Just note a pattern. There are some countries that were spending more than they have, and those countries are in big problems. Just take a look at Greece, Italy, Ireland, and, to some extent Spain. Then, there are countries that didn't spend more than they were able to service, and they are doing fine. Take a look at Germany, Austria, Netherlands, Sweden, Slovakia, Poland. Then, there are some countries in between, that are neither too good, nor bad.
It's easy to draw a conclusion what is the way out of crisis, and I hope Germany will be able to lead a way.