One of the largest and most profitable companies in the world can't hire enough low-paid humans to do content review. They already have some of the highest margins in history and they still can't figure out that sacrificing less than 1% of profits could solve this problem?
People still can't figure out that not watching YouTube solves all moderation problems?
Google doesn't care about those posting on YouTube. They care about advertisers pulling their money if whatever content infringes on THEIR priorities.