Could also help to deactivate the personalized advertising functionality in the Google/YouTube settings (basically wipe currently stored preference, the forbid YouTube from making suggestions based on your interests). This will keep her feed fairly generic (and bad, oh boy) so that she would have to actively search for or subscribe to these videos.
Roman emperor Elagabalus is my personal entry for the "historical man-children so incompetent it's surprising they even made it that far" category.
https://en.wikipedia.org/wiki/Elagabalus