I agree with the sentiment of your post, but I think the scope is way off. I read through the comments and I found things I did not expect to find here (which messenger is better) and not the stuff I was expecting to find, which is the actual survival game. Yeah sure, reliable secure telecommunications is an aspect of it, but if you really expect the US to pull a Holocaust on trans people there are several other things to think about, both before and after discussing the channels of communication.
The first step is networking through secure communication, especially at this early stage where we simply can't predict what is or isn't going to happen. Don't underestimate the importance and value of communication.