Strawman version: Google gets safe harbor if they are neutral as to what videos are on the site.
If they pay people for videos, no safe harbor on those videos. If they reject things for editorial reasons, no safe harbor.
This would probably be quite problematic. On the other hand, it would help address what I think is a big hole in free speech: almost add speech is mediated by companies, and those companies have no particular incentive to respect freedom of speech. Maybe the law should give them one.