I'm probably in the minority, but the negatives don't seem that bad when compared to the benefits we get from the tech companies: free email, free or cheap access to information on almost anything you could be interested in, junk entertainment that people seem to enjoy. The negatives are less tangible: giving up your personal data (this is complicated by the fact that the data didn't exist until you used their servic…
You forgot about the elephant in the room: the imminent danger of cyberwarfare.
The reason the Holocaust was so efficient at mass murder was because of "giving up your personal data".
https://en.m.wikipedia.org/wiki/IBM_and_the_Holocaust
These tech companies have aggregated the most detailed demographical and psychological profiles in history on billions of people.
Let's not pretend they're impervious to hackers.
The "weapons of mass destruction" of the future will be algorithms loaded with the dual-use munitions we call "big data".