Governments are under much stricter restrictions regarding censoring speech than companies, and are generally seen as more important because they can come and put you in prison. I agree that total privacy on the internet has been exceptional for ages, but there's a real difference between Google knowing all about you (and maybe telling the government if they ask) and the government knowing all about everyone and deciding how they want to act on that.

J. Edgar Hoover never worked for Google.

I don't have to use Google for search, and I don't. And Facebook is far from being compulsory.

Can you tell me how to opt-out of what governments are doing?