I root for the underdogs, the ones punching above their weight. They carry the fighting spirit of the people.
To be loyal to my city alone is to forget the Republic and the people beyond its gates. The underdog's fighting spirit is the true engine of greatness; it can lift us all.
Indeed, in nature the underdogs endure by adaptation; natural selection favors variation and cooperation, not sheer strength.
City loyalty narrows the field. True strength comes from choosing sides that widen the state's power, even if that side is the underdog.