@kristoff historically, yes, we have just accepted that you can't control some things.
if the only possible restrictions disproportionately affect the general public who are using those technologies for non-criminal reasons, then you consider that enforcement a net loss.
@ansuz I agree if we consider this to be just "law-enforcement vs criminals".
The problem -as I see it- is that we are now seeing a state-against-state battle, and a war between different models of society.
The question for me is, how do we deal with scenarios where encryption is being used to attack democracy itself, the thing we wanted to protect in the first place. (and probably the prime requirement to see encyption-technology in the hands of normal citizens)