think of decentralised politics kinda like how we navigate friend groups. we have various friend circles that overlap with other circles in a sort of mesh. there are still folks that don't fit in the mesh very well, but it's better than some higher power telling you who to be friends with, when you need to break off a friendship, what you can and can't do or share with your friends, etc
especially if we imagine that the people in control...only allow friendships they know/care about