I agree, I'm not into outright censorship based on my own personal opinions or beliefs. Our users have the ability to block instances/domains if they wish. Really the only reason I would defederate from other instances is if there were highly illegal activities taking place (as dictated by US law) or if an actor is being technically disruptive (spam and other malicious payloads).
Now that said, I will monitor this closely because Threads is going to be a beast in size by comparison to us and other small instances... it could very well end up heavily taxing my server/bandwidth/storage requirements. I may be forced to defederate and/or limit Threads AP activity if I find that it's overloading my infrastructure/$$$ on storage fees, but I guess we'll have to wait and see.