Regarding football clubs, why do people in the same city become sworn enemies? Why can't there be peace? For example, Inter Milan and Ami, Barcelona and Spaniards and so on.
This is that one mountain can't accommodate two tigers. As a symbol of a city, no one wants someone to share half of their fans and pay attention to others. Moreover, many sworn enemies in the same city were originally split from the same club, and historical grievances were relatively large. There can be no peace. For example, A meters and Inter Milan.