That’s an example where there’s not much point in arguing against your proposal precisely because of the impossibility of establishing any kind of shared frame

That’s an example where there’s not much point in arguing against your proposal precisely because of the impossibility of establishing any kind of shared frame of reference. If people are trying to put you in concentration camps then the time for reasoned argument has most likely passed. On the other hand, people who support and oppose these sorts of age verification laws might actually have a lot of common ground, if they’d take the time to find it.