[BearGoesChirp]

Honest question, other than the fact that courts haven't actually said so, where is the difference between an extremist video including acts of violence and the material that is already illegal?

Created by harming others? Same. Is a threat to society? Same. Goes against cultural norms? Almost same (those in the US are far more accepting of fake violence, but real videos of people being murdered tends to be quite taboo).

One includes violence, the other includes sexual violence. But any argument for banning or allowing one seems to be a very close fit to the other.