Remember Google's motto, "index the world's information" ?
You can forget it now, Google is just censoring or deferencing, both equivalent to deleting, content it indexes based on undisclosed rules.
In fact, you can see quite clearly that someone owns Google. I am sure that will come as a surprise when so many (un)informed journalists out there tell you that Google owns you.
Someone informs Google, and Google isn't transparent about it.
More accurately, Google says so but you've got to read between the lines.
Take a look at their latest announcement regarding the censoring and deferencing of so-called questionable Youtube videos :
extrait : "Title : Continuing our work to improve recommendations
(...) We’ll begin reducing recommendations of borderline content and content that could misinform users in harmful ways—such as videos promoting a phony miracle cure for a serious illness, claiming the earth is flat, or making blatantly false claims about historic events like 9/11. (...) We think this change strikes a balance between maintaining a platform for free speech and living up to our responsibility to users. (...) This change relies on a combination of machine learning and real people. We work with human evaluators and experts from all over the United States
"
So, in a nutshell, responsability implies censoring and dereferencing content produced by others, content that is not illegal at all, and this is controlled by human evaluators. Oh and by the way, those people are from the United states only, just to be sure this makes sense...
If Google were transparent, as they claim they are, all censored and deferenced videos would 1) get listed on a page where everyone can see them listed with details to know why they were flagged 2) who flagged them and in particular who is the person behind the censorship and deferencing.
Of course Google will never do transparency on the subject. Why is because it is obvious everyone with a functioning brain would immediately understand who owns Google. And there would be a blood bath right after that.
Only respectable way out of this : a Googler stockpiles this list and makes it available publicly aftger a year or two, openly so that researchers can extract active censors, on what political/religious grounds properly owned content is censored and deferenced. In other words, why freedom of expression is so blatantly violated by a (possibly) small group of people with enormous power (none of these are Googlers by the way).