> It reminds me of the campaign in the 90s against video game manufacturers for "corrupting the youth".

The government did intervene though. They threatened to regulate the industry if the industry didn't regulate itself. So some/all the big industry players got together and created their own independent age rating agency that they all agreed to use.

Whoever was suing won in the outcomes department.

It's unclear to me that any government plan to rate media would pass first amendment scrutiny. Are there any official government rating regulations?