The point is that it's never just "for advertising purposes". It stopped being about ads forever ago. The data that's collected about you "for advertising purpo

The point is that it's never just "for advertising purposes". It stopped being about ads forever ago. The data that's collected about you "for advertising purposes" ends up being sold to (or just taken by) the government and it ends up in the hands of data brokers and from there it's used by many different groups of people for their own purposes. Companies use that data to decide what products and services they'll tell you they offer, what they'll tell you their policies are, and what prices you'll pay. You might be charged one price and told you have 14 days to make a return, while the next person will be charged less for the same item and be told the return policy is 30 days. Companies are even using that data to decide things like how long to leave you on hold when you call them. Insurance companies use that data to decide how much to charge you. Employers use that data to decide who to hire. Political parties use that data to mislead and manipulate voters. Activists and extremists use that data to watch and target groups and individuals they don't like. Stalkers and abusive partners use that data to track their victims. Police use that data to find suspects and lawyers can use it in court rooms as evidence against you. Being surveilled would (maybe) be okay sometimes if it were only ever used for ads and nothing else, but that's simply not the reality we live in. That data lives forever and whoever has it, or can get it, will use it for whatever they want whenever they want to.