You should take a breath and chill with the Jingo.
> are all countries willing to adopt German fiscal discipline?
Most of them have already, you just don't read about it. If anything, German authorities have been excellent at gaming the EU framework, siphoning state aids to this or that industry with all the possible loopholes they could find, while everyone else had to renounce (or even denounce) the practice.
> Are all countries ok with levelling out retirement age?
The pension age in Germany is 65 years ("and 10 months", in my best Lester Freamon accent). In profligate Italy? 67. So yeah, let's have that.
> Social benefits?
Honestly, you don't want to trade benefits with the army of temp workers that Italian "reforms" have generated. They get hardly any paid holiday or sickness, can be fired with no recourse year by year, and so on. German workers get trade union representation at board level, something that simply does not exist in Italy even in the most enlightened companies. They get loads of paid holidays and so on.
> Now they are an economic powerhouse. With 0 natural resources
Ah yes, the Ruhr never existed. From wikipedia: "The Ruhr was at the centre of the German economic miracle Wirtschaftswunder of the 1950s and 1960s, as very rapid economic growth (9% a year) created a heavy demand for coal and steel." All that coal must have been a dream.
Italy had an economic boom in the postwar age too. After all, they were fellow victims of Allied carpet-bombing of industrial infrastructure, and fellow enjoyers of the Marshall Plan. The main difference is that Italy made a few bad choices in the '80s (and possibly another one in the late '90s, when they accepted an Euro/Lira rate too low).
In any case, this attitude is not constructive. It's good that the German political classes, at least, have finally realized that the hipocrisy of privately benefiting from a sclerotic status quo while publicly denouncing it, could not go on forever. Let's build the United States of Europe, everyone doing their bit so we can fulfil the federal dream and be done with these petty rivalries from 200 years ago.