> If I give consent to participate in collection of my internet data, it doesn't give you authorization to like, have someone live in my house and follow me around 24/7 so they can see what i do on the internet.

TV ratings used to be collected from panelists using a wearable device that literally had an always-on microphone recording you 24/7 : https://en.wikipedia.org/wiki/Portable_People_Meter

How is the situation of Onavo/Meta panelists worse ?