1. Advertisements without data are worthless. At a minimum you need a mechanism to combat click fraud and that requires detailed profiles and tracking on users to determine the economic value of those users.
2. This is a vanishingly small subset of ads.
3. While advertisers do not directly receive your data, you do still get tracked. Furthermore, the infrastructure undergirding ad tracking is comically easy to appropriate for law enforcement and national security purposes; the CIA buys a shitton of ad tracking data from data brokers.
Furthermore, targeted advertising, even if used as intended without any law enforcement spook tracking nonsense, is still a nightmare because it allows fraudsters to target ads directly to their most optimal marks. Think about how good Facebook is at showing your grandpa a bunch of fake ads for fraudulent products and scams. Scamming online got a lot more efficient with targeted advertising.
4. The double dip still exists even if data isn't tracked because I don't want to see ads. I am paying to remove them. In fact, I shouldn't even have to pay to remove the tracking; that should be free, and under EU law it is free.
5. A lot of subscriptions actually were sold as no ads, because that's the thing people want.
6. The correct amount of ads are zero. Because ads are not information, they are attacks, in the same way that social engineering is an attack.