Ways to convince people to take online privacy seriously - common objections debunked
(blog.rebeltechalliance.org)
That doesn't address the other two bullet points.
It's like tracking an animal moving in tall grass. You don't need to be able to see the animal directly to tell where it is.
If I can't disappear completely, there's enough data points around me that a useful silhouette can be reconstructed from all the surrounding data.
What's the point?