Of course the Italians can’t take their responsibilities because of… pizza? Super Mario? The godfather?
I don't understand how the shitting, and slapping right back is economically relevant. How is it preventing a country or a region from picking a market and becoming a global leader and thus earning high margins? E.g. people have been dissing China's product quality for ages and yet that hasn't prevented China from improving.
As a side note, it shouldn't be an economic disadvantage that Germany exports 30% to the European periphery. Cars are a competitive market with French, Korean, Japanese and American offers. The periphery should be able to make back much more if they specialize in products of a high-margin market. E.g. if I were a politician, I would go all-in on medical research and try to develop some world-leading equipment or cures.
The main cultural issues that keep the periphery poor are those stemming from the “core”. Always shitting on the south and east is what keeps those regions stagnating. What upsets me is that they turn the other cheek instead of slapping right back.