Then you'll have to explain how the "general welfare of the public" is benefited by the state's arbitration of what cultural assets are and are not of value. Demanding that our culture is "Of social value" is an arbitrary distinction which logically excludes wide ranges of valued media with no concrete justification.
If there is no justifiable cause for concern that said media is a threat to members of society's safety or well-being, why should it be banned?