The next time CCTVs and bodycams are used to catch a criminal, perhaps you can volunteer to be the one telling the victims family about liberty and government over-reach.
In any case, we already have existing tech that is serving as a technological deterrent for drunk driving. The legislation doesn't explicitly say so, but I am imagining an expansion of this program. - https://en.wikipedia.org/wiki/Ignition_interlock_device
yes, that's exactly what I'm talking about. let's start slowly, only requiring a camera in the living room. then some time later, let's seek out incidents that had occurred in bathrooms, run them in the news every week to prime the masses, then they'll ask us themselves to mandate cameras in all bathrooms as well.
all detractors will be branded as pedophiles, of course