I understand cryptography and I broadly support the activities of the FBI. You have now “met” such a person.

It’s fully possible to simultaneously support opposing concepts like end-to-end encryption for users and the organizational imperatives of the FBI. A nuanced perspective might consider that citizens and the FBI have separate prerogatives and competing incentives with respect to private encryption, and this is perfectly fine.

A consequence of an organization optimized to reduce crime is its natural zeal for greater control over things that grant criminals freedom. Secure cryptography represents thermodynamically incontrovertible freedom of communication, which is intrinsically antagonistic to control. In the abstract, any organization striving to (in effect) reduce the rights of criminals will produce friction with the rights of citizens in general. But that doesn’t make the organization’s goals incoherent or evil, it means there must be a system of checks and balances. The ideal goal is one of compromise - we want to reduce net criminality, but we want to increase privacy.

We have that compromise because open, end-to-end encryption (and private companies willing to implement it securely) is available to us. But the existence of arms race between parties does not indicate that one party’s overarching goals shouldn’t be supported. One party desires greater control, the other desires greater freedom. Both can coexist despite their competing incentives.