On the case for not collecting everything about everybody: what when we get a ChatGPT trained on that where one can go ask "how can I manipulate [person] to do [something]"? Or "give me material to blackmail people that are likely to pay me"? People believe that it is not insane to think about sending humanity into space, that quantum computers will be a thing and that technology can solve the climate crisis. Why would it be worse to think that data is power?
Then ignoring the argument above, they don't just "take your data" that is "there". They harvest it. It makes their websites heavier, which makes you pay for a better internet connection and better hardware for no other reason. It makes them create addictive services so that you lose half of your life swiping meaningless infinite pages. Or it polarizes discussions online, promoting fake news and whatever engages people (usually not constructively).
Please take a step back, and tell me what has changed in e-mails in the last 30 years that actually makes your life better. Something that would justify not being able to use e-mails today with a 30 years-old computer. We're talking about e-mails here, but just think about that for anything "free" that you are using today.
The software industry wastes a lot of resources into "taking your data", because it makes money. What if we actually reflected about what technology is, and how it can serve society? We do have pretty big problems to solve, would be nice if the best software engineers out there were paid to work on them, instead of getting 5x the salary to improve ads online.