What's the problem with e2e encryption for those organizations?
The problem is if they give those orgs a backdoor
The problem is if they give those orgs a backdoor
What more do you want?
You described the goal, yeah, that would be pretty wonderful, like unicorns, flying pixie dust and other things that don't seem to exist as of yet.
And I don't use them. I grab the posted sources and use them on hardware I physically control. If (I'm not, but I do care about my privacy) I was someone that was being pursued by one or more governments/well-funded private actors, I wouldn't use any communication platforms hosted by others.
As the old saw goes: "Three can keep a secret. If two are dead."