The term excommunication carries a heavy negative weight, right?
The implication is that you messed up. You failed. You’re bad. You’re dangerous. You’re smelly. You don’t get to live here anymore.
But excommunication is how humanity spreads: leaving one community to form others.
It’s how we protect our integrity: there’s the classic example that the Church excommunicates you when you go against its teachings. And perhaps you excommunicate yourself when the teachings of the Church go against you.
Sometimes excommunication is the way to go. It’s not a disgrace, but a triumph.
And if we do it together, well...