The thing about rubber hose cryptoanalysis is that it doesn't scale. Even the most depraved of governments will have to purposefully and deliberately choose their victims rather than vacuum and process all data they have access to.

Luckly, rubber hose cryptoanalysis is not a concern for most people, which is where crypto is needed the most.

To clarify:

Any centralized messaging can not be secure by definition.

Also:

A lot of people are forgetting what a lot of NSA types can do with metadata.

(IIRC Italians caught CIA spies with phone number metadata analysis software supplied by... US!)

Any messaging app that is associated with a phone number calling itself "secure" is just maliciously stupid.