[ub]

You are making a bunch of assertions with no basis. WhatsApp's encryption hasn't been weakened. FB can't look at encrypted message content, neither can WhatsApp. A lot of people use WhatsApp because of the encryption guarantees, please don't spread unverified claims.

[blub]

Facebook owns the communication end points and can do whatever they want with the message contents before they're sent encrypted.

Given their history, I would be surprised if they don't do some on-device metadata analysis.