Like if they mandated every computer would have a CSAM scanner on it, that wouldn't transmit or store anything, but would just stop you opening files it flagged as CSAM, that would be a problem because sometimes it would incorrectly flag a file as CSAM, yes? But proponents of the system would probably say "That gosh darn government stopping you from watching child porn" and nothing you could ever say to them would make them reverse their position? And then the only detection model that's allowed to exist and meet the government mandated requirements is an opaque blob from Meta?