I think it’s also important to understand that defederation is a key feature of the fediverse, not something necessarily bad. It allows us to create interconnected communities that fit the needs of different people.

Beehaw and Lemmy.world have similar goals but different strategies, so they defederate so that Beehaw won’t have to be subject to moderation issues facing Lemmy.world. That’s perfectly fine - Beehaw are not morally obliged to receive content from Lemmy.world. Their users know the content policy of the page, and choose to stay out of their own free will.

Another server might have their own intolerances, even seemingly problematic ones like blasphemy or the letter e. They’re free to defederate as they see fit.

This is not breaking the fediverse - it’s a major feature of the fediverse by design.