My argument is that the "reasonably informed demographic" is incredibly small. I can only say the same thing so many times, though, so I'm not sure how to explain it in a different way.
To restate my example, even very smart CS graduates may not realize that anonymized data joined with other anonymized data can result in de-anonymized data, because the linking and de-anonymization of sparse datasets is a niche subfield that has only recently begun being explored.
Many people may think they are reasonably informed (they look into the ToS, see that data is anonymized, and decide that they are okay with that) without knowing that the data may later by de-anonymized through advanced statistical analysis they've never been exposed to in all their schooling. So while they thought they were informed, they weren't. This repeats across several domains.
>But again, i repeatedly fallback to "But who else can do this?".
Why is that when a problem is identified, people demand a solution be provided at the same time? I don't have a solution, sorry. But that shouldn't preclude me from identifying a problem.
I honestly did not expect saying basically "Let's put some of the blame on Google, because they're the ones with the dark patterns and lawyers and experts, rather than solely blaming the layperson" would be met with much pushback.