> We have a convenient way for people to request universally that sites not track them
DNT is utterly ignored to the point it’s officially deprecated in various browsers and the W3C working group for it disbanded:
https://en.wikipedia.org/wiki/Do_Not_Track
> It gives site owners tons of explicit opt-ins that nobody can complain about, even though they were coerced.
Coerced assent is expressly forbidden by GDPR, so we absolutely can and are complaining about this.