Your comparison is quite disgusting and grotesque of course, but let os ignore that for a moment and address the false idea that users are "paying with their privacy"; such opinions is probably the result of a number of logical fallacies.

There is no exchange going on, quite literally, and users get a service, basically for free. Whatever definition you make up to describe the business model does not change this fact.

In addition, so-called tracking is not the problem in itself, and especially so since users are anonymized. It is things like political misinformation and resulting manipulation that is problematic – not targeted ads themselves.

Risks continue to be profoundly exaggerated, and people, even those in the know, seem bend on propagating such misinformation. Please, let's stick to a factually based discussion.

Derailing the discussion with grotesque and perverted irrelevant comparisons of organ trading is not helpful.