I prefer to deal with content in a case-by-case basis, and de-federation from an instance would be the very last-resort strategy. I want users to have the freedom to choose what they interact with. Today it's exploding-heads, soon it will be Meta, then some might want to defederate from lemmygrad, and after that something else.
My position is to resist de-federation. To defederate I would need to have seen that the users asking for defederation have made an effort not to engage with the content by blocking communities and reporting offending users/content who post to our communities, and the scale of the problem must be so significant that I can no longer deal with it manually. As of today, I have received zero reports of exploding-heads.
I have looked at the communities, and I can see that we have fetched content from the following communities:
It is only five communities, and my suggestion is to block them if you find their content offensive. I hope that users will soon be able to block instances themselves.
If this is a deal-breaker, defederating with problematic instances is a very common position in the fediverse, and it will be easy to find an instance that blocks them.