Not stupid, just uninformed. A lot of people are confused by how things like targeted ads work and because of that they just accept it as inevitable. They think “This website knows what I searched for on another website because it’s all linked. That’s how the internet works” and once you break down how the tracking is actually done, they realise it’s not infallible

It’s the same thing as people not knowing how planes stay in the air or what makes a car engine work. Nobody can be an expert on everything. I don’t mean to give you a lecture btw, I just think it’s counterproductive to dismiss people. But of course there are exceptions and some people just don’t want to know