Decentralized systems' far better track record than centralized services on these goals must be very frustrating if you run such a centralized service but attacking bizarre straw men is not useful. Imagine if the over 50 million dollars funding Signal had gone towards polishing a distributed messenger....
#opensource Signal app forks:
1. LibreSignal https://encrypt-the-planet.com/noise-a-signal-messenger-fork/
Server run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!