Reminder that defederation is an explicit feature implemented into fediverse platforms. It is meant to be used as the instance sees fit. The notion that you can never defederate with anyone defeats the purpose of the fediverse, we might as well make one huge centralized platform in that case.
No other instance owes you a federation to your instance. The fediverse's whole philosophy is that instances get to configure both who they federate with and who federates with them.
Finally, there is a certain irony in the people screaming "freedom" and "free speech" telling admins of private instances what they can and can't do with their own platform.