I'm also unclear on whether "opting out of tracking" under the definition you're implying is possible. Any entity tracking you needs to track that you've opted out of tracking, which requires tracking you. Whoops.
I reject the idea that you have to be tracked to not be tracked.
Imagine a system where you opt in to tracking, if you are not opted in, no data about you is written into any system used for business analysis.
Of course you can't/shouldn't stop all writes to your systems, like server access logs, but you can draw a line between operational and business data.
Of course if you have access to both operational and business data sets you can analyze data for people who have not opted in, but I would rather live in a world where we at least try to enforce a separation between the two.
