How do you determine if a video shows death or torture? The fact that our modern society thinks nudity and sex is bad but violence, torture and death are OK I

How do you determine if a video shows death or torture? The fact that our modern society thinks nudity and sex is bad but violence, torture and death are OK I just don't understand. I would much rather have my kid see the Pamela Anderson sex tape than someone being murdered or even water boarded.