Another major reason is the change of perception of patriotism, and the gradual disappearance of patriotic self-sacrifice and military discipline. In the thread
How did the ancient Romans turn into Italians ?, I pointed out that the character of the ancient Romans (of the Republic) was diametrically opposite to that of modern Italians in some regards.
In his book
The Moral Basis of a Backward Society, the American political scientist Edward Banfield employed the phrase '
amoral familism' to describe the inability of modern (mostly southern) Italian villagers to 'act together for the common good, or indeed for any good transcending the immediate material interest of the family'. Interestingly this complete lack of attachment to the state and lack of identification to the wider community is found nowadays in societies that I would qualify of '
short-ranged collectivist' (in which the collectivity is the family or village) of the Balkans and southern Italy, as opposed to the 'wide-range collectivism' (where the collectivity is the whole nation) of East Asia.
The ancient Romans of the republic were wide-range collectivists, true patriots dedicated to the common good of their state. I believe that the citizens of the empire progressively lost their patriotism for the following reasons:
- The empire became a huge cosmopolitan entity with which individuals couldn't identify anymore.
The state became too distant and artificial.
- The original Romans of the republic could feel like one big family with a common ancestry and homeland. Once the empire grew, immigration completely changed the ethnic landscape of Rome and of Italy.
Rome stopped being ethnically Roman.
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Solidarity works best for states with a homogeneous ethnicity. Immigration to Western Europe since the 1950's has shown that citizens become increasingly reluctant to show social solidarity when ethnically and culturally different immigrants become the main beneficiary. The Romans would have felt the same way. It is one thing to fight for the
patria, your ancestors' homeland, but quite another to fight for the protection of completely unrelated people in distant corners of the empire. As Italy became more of an ethnic mosaic, parochialism and familism rose to the detriment of patriotism.