Earlier quoted context omitted.
If Apple genuinely though that, you’d expect them to be selling access to their customer data to the highest bidder, but they aren’t. In fact they were offered billions of dollars in revenue by Google for customer location data in Google Maps. Apple turned it down and instead spent billions of dollars and several years building Apple Maps instead.
But they'll gladly take ~$12 Bn/year to have Google as Safari default search provider.
Well, they still need a search provider, a lot of people would change it to Google anyway. Arguably locking down the browser to limit tracking as much as possible is reasonable even though it potentially makes that Google deal less lucrative.
If they were intent on monetising users data, you’d expect them to make a deal with Google to allow tracking in Safari in exchange for a higher fee for default search.
In other words they don’t seem to be doing any of the things We would expect to see if this theory was correct.