It's a natural monopoly via network externality. Leave facebook, you miss information your friends and family post to facebook because that's enough. Leave wh

It's a natural monopoly via network externality. Leave facebook, you miss information your friends and family post to facebook because that's enough. Leave whatsapp - you now can't message with encryption to a large number of your contacts. But yes, absolutely you should have signal. Everyone should. That's not the reality we're faced with. Whatsapp message to Dad is better than plaintext - that doesn't mean facebook can be as crooked as they like when they provide that.