You are still removing others rights over a hypothetical. It doesn't miss this, it directly focuses on the point of blame. Punish the parents for exposing their kids. Irresponsibility is not excuse for harm... If a parent leaves hardcore porn laying around for a child to find and harm occurs, don't punish the uninvolved adult up the street.
Another form of media doesn't magically absolve parents from parental responsibility. Stop trying to play the "poor adults have no control over their kids!" Card.
The "but think of the children!!!" trope is tired and over abused to remove rights and privacy. Move along.