This is incredibly sad, with google you can atleast use the argument that search was free (which is still weak IMO). But with OAI collecting indiscriminate data on paying customers is just incredibly sad.
The ads are the product that people are paying for. “Consumer” AI is currently marketed as agents that book restaurants for you, buy cat food before you run out, organize your travel, etc. etc. These are targeted ads for a particular restaurant, pet store, airline, etc. Some people find this desirable.
You can pay for whatever Google service and they still collect this data. Same with meta subscription.
With paid services, Google generally does not collect. Or at least you can opt out of collection, email scanning, etc.