Without those provisions no website could allow user created content, as they would instantly be sued to oblivion.
(Standard disclaimer of working for Google)
The rest is up to the users.
I want to make it clear that I do not have a problem with a safe harbor what so ever.
If Google wants to prevent its users who ask it from being able to access some portion of internet, Google absolutely can do that. That portion of the internet should not be able to go after Google for acting on behalf of the users.
What Google is doing is preventing users that did not ask for that from being able to access that portion of the internet. It is akin to Verizon deciding "that content is bad so we are going to block it in our pipe". If Google wants to do that, then fine it is providing the "clean internet experience" and it should absolutely be punished when it fails at doing that (hosting child porn)
They want it both ways and what we're seeing is the outcome. The solution is simple - don't have it both ways.
I think we as the society agree that child porn and child sexual abuse is a criminally punishable offense. A platform in a possession of it clearly is in a possession and distribution of child pornography, hence officers and directors should be charged under those statues.