It's a simple value estimate. Some things, at least in the moment, appear to be worth having some of your data stolen. Also there are measures that can be taken, such as using adblockers, that minimize the cost.
You tell me, I was responding to your hypothetical question: "If you were actually worried about YouTube stealing your data, why do you keep giving it to them by using their service?"
>An ad blocker prevents you from seeing ads but it doesn't do anything to prevent resale of the data you volunteer
True. That's why I still volunteer as little data as possible.