Doing something personally is fine. But trying to convince an entire community to ditch something that works and is likely incredibly valuable to them to stick it to some billionaire you don't like is just wrong.
We all helped our families and loved ones to ditch MSN for Google Talk for Skype for WhatsApp for Discord etc.
It might happen again. :)
its not wrong - we should all ditch facebook
it does seem unlikely to work though, for the reasons you mentioned