Encrypting everything promotes individual agency, the freedom of an individual to communicate solely (encryption) and certainly (MAC) with whomever that individual chooses. Cryptographic protocols do not inherently cause performance or logistics complications (Resource usage, content isolation) as these are side effects of other underlying issues with the technology upon which we implement cryptography and can be fixed without compromising the security of cryptography.
The only argument against pervasive solid encryption with potential validity is external-party bypassing; where the external-party is outside the intended group of involved parties (Bob & Alice) and wishes to access or manipulate the secured communications. The most obvious situation being some external authority wishing to prevent or prosecute a crime.
Traditionally, in the US, you (and your property) have agency until a warrant, subpena, or probable cause arises. At this point, and no sooner, the acting authority suspends some part of that agency for the assumed greater good of the society and begins collecting evidence through an established process. Without this suspension of agency the authority, traditionally, cannot and should not be treating you or your property with reduced agency; the authority should not be preemptively diminishing your agency by starting that evidence collection process (compromising protections) with zero probably cause.
It is the problem and responsibility of that authority, as set out by the social contract of free agents comprising our society, to reduce agency and collect evidence AFTER probably cause arises and NOT as the default against every citizen.
The only argument against pervasive solid encryption with potential validity is external-party bypassing; where the external-party is outside the intended group of involved parties (Bob & Alice) and wishes to access or manipulate the secured communications. The most obvious situation being some external authority wishing to prevent or prosecute a crime.
Traditionally, in the US, you (and your property) have agency until a warrant, subpena, or probable cause arises. At this point, and no sooner, the acting authority suspends some part of that agency for the assumed greater good of the society and begins collecting evidence through an established process. Without this suspension of agency the authority, traditionally, cannot and should not be treating you or your property with reduced agency; the authority should not be preemptively diminishing your agency by starting that evidence collection process (compromising protections) with zero probably cause.
It is the problem and responsibility of that authority, as set out by the social contract of free agents comprising our society, to reduce agency and collect evidence AFTER probably cause arises and NOT as the default against every citizen.