Use of meta data rich protocols like standard email, instead of, e.g., the signal protocol

Brother...its an email product though...if you can use Signal, use Signal. But it's a different product entirely.

When my bank sends me verification info and banking statements over Signal I'll be elated. Until then, we unfortunately have to continue dealing with email.

As is choosing operate from a jurisdiction that can comple them to collect IP addresses.

There is no such requirement. They collect them necessarily in order to function.