Analogous to the metaphor you just made, the "better solution" is not talking to people. I'm all-for open and secure communication protocols, but the layman isn't going to agree if you cast it as an all-or-nothing mentality.
You can a) set up a gateway/bridge or b) contribute to those platforms to make them better so users like them more as the open+secure options are more worth the long-term investment into instead of making users choose between privacy/security or having the ability to communicate.
For 99% of normal people, neither A nor B is something they are capable of. If the success of free alternatives is contingent on this behavior, we might as well throw in the towel now.
If the average Discord user read your comment, I think it would reaffirm their assumption that free Discord alternatives aren't for them.
