Diogenes, the famous Greek philosopher, was once asked where he was from. He replied “I am a citizen of the world”. The Greek word for this is kosmopolitês.
Later on, the Stoic crowd further developed Diogenes’ thought into an entire framework called cosmopolitanism. Essentially, the circle model of identity puts yourself in the middle of expanding concentric circles of importance: immediate family, extended family, friends, neighbors, humanity. This was underscored by an emphasis of the importance of a shared affinity for humanity.
I like cosmopolitanism. It seems like a healthy way to view the world.