This is the exact argument that we had in the 1990s about content on television, and the solution ended up being exactly this -- TV networks started attaching ratings to their broadcasts, and TV sets started including "v-chips" that could be turned on and configured to block content that matched certain ratings.

Once that solution was in place, the argument was settled, and the people trying to push for censorship in pursuit of ulterior motives didn't have a leg to stand on.