It looks like there are no alternatives. You pay or lose privacy. I think you can have advertisements without targeting single people and without selling data. Single person targeted ads are bullshit. You still can count clicks to your ad without need to know personal details. I do not think anyone in adtech is keeping that data to check later if click caused actuall buy. They just keep it as reference to spam you with the same crap and have some points when they prove clicks were kind of legit.