I'd rather trust a public (not-for-profit) institution that actually had a real incentive to protect user security. Instead we get for-profit companies that have a vested interest (conflict of interest) to do security the way it thinks it should be done. In my experience, that usually is bad for the people that are using the platform because there is no real surety that security is being done for the sake of the users.

Apple has no interest in working with public institutions that have a close relationship with the people they serve. That's a big red flag in my book. You cant trust a company that serves content and hardware and at the same time trust them with security. It's too many eggs in one basket, to easy of a target for rogue entities (NSA) even if they have good motives .