"Virus Scanner" is optional, many ways to disable it, you won't be arrested if you are infected, and government doesn't get to decide what virus is.

Apple scanning is NOT optional, if they have false match or mess up you will be charged/investigated for one of THE most hated crimes in human history, even if you win the case the damage will be irreparable.

You lost your mind if you think governments are not going to setup their own CSAM database hashes with their own "manual review" centers. Apple will not be able to jack shit on what each country considers CSAM.