Defederating from Facebook just seems like it's motivated by giving them the middle finger.
Well I've found where we disagree! I think defederating from Threads is more of a safeguard of the users of this instance from Meta's predatory data practices, and history of employing the classic Embrace, Extend, Extinguish strategy. Personally, I think having zero connection to anything run by Meta is certainly giving the users of the instance the best possible experience.