Read Baase chapter 2 on privacy and chapter 3 on free speech.
Start reading the material in Chapter 4 on software patents
One regulatory approach would be to require that tracking code honor
various opt-out mechanisms, such as the Do Not Track option.
The author argues strongly that the Brave browser's privacy features are misleading, if not fraudulent.
The author doesn't like DuckDuckGo either.
The Chromium engine (Blink) has disabled the appropriate API for adblocking, and crippled the backup API. Firefox with Gecko/Quantum is the only browser that the uBlock Origin adblocker can work properly on.
Still, there's a deeper question: who do we want privacy from? Gecko is possibly buggier than Blink, a consideration if you're worried about subversion by your government. But if you're worried about advertising tracking, Gecko is probably much better.
And what is the real question?
Google and censorship
Source code as speech