The only difference between one person seeing you on the street, and having that data searchable on the internet is to what extent that person exercises his free speech rights. If you have a problem with that, you have a problem with free speech. Your position is blatantly authoritarian.
If you have a secret you want to keep, don't tell anyone. Once the secret is out, you can't stop other people from telling it without violating their rights.
While I understand your point, I don't see everything as black and white as you do. I think that what we are dealing with are two rights that are conflicting here. The right to free speech and the right to privacy. When you have two rights conflicting like this it is always a judgment call as to how to resolve this for any given situation. Obviously we differ on this!
Also, I find it kind of ironic that you keep calling me and/or the German state authoritarian because of this because a large area of what German privacy laws are about is protecting the individual from the state, but not only the state, tracking them and correlating data about them. I, for my part, think of that as the exact opposite of authoritarian! I don't want a Big Brother, whether it is my government or large corporations!