With all "security" cameras and face recognition software and big data mining, which links many sources together, real world in developed world is not a place for revolution too.
Welcome do dystopia and hope that governments in developed world will not become too nasty (CCP-level nasty) too soon due to inertia.
You got a few days of Tor on each device; then they need to burn.
I really don't know what more you can do beyond making your own chat client. Internet is not a place for revolution.