medium term, i don't see how democracy can function if E2EE becomes the norm (esp in the context of cryptocurrency). influence-buying, disinformation, collusion, bribes, bullying, etc become much much easier, and policing would become nearly impossible
instead, ban E2EE but allow each person to have multiple identities (with technical means to prevent them from being tied together or expose personal info - a nontrivial but solvable problem), ie Privacy via Multiple Identity or PvMI
this scheme would provide many of the benefits of E2EE (eg, preventing an employer from punishing your for political speech) while allowing policing of many illegal activities. one exception is that if the people became fed up with the govt and wanted to stage an armed rebellion, PvMI wouldn't help (though it would help get to the point of consensus that rebellion is needed). I'm not sure how practical the concept of armed rebellion is today, but I haven't written it off either. So this is a downside.
Can anyone think of any other not-harmful-to-society activity that E2EE helps with that PvMI wouldn't ?