I half agree with you: technological solutions alone will not suffice, though they may be part of the solution.
But additionally, legal reforms, economic reforms, and social reforms need to be part of this.
Legal reforms to limit the ability of organisations to access, appropriate, store, exchange, and act based on exfiltrated data.
Economic reforms, as noted, to change the business model of publishing from ads-supported media.
Social reforms such that people push back on this. That's less a burden than necessary, IMO, as awareness of the scope of invasion seems highly developed, though responses to that are presently limited.
In concert with the above, provided and mandated technical means for people to protect their information, and to keep corporations and other organisations from grabbing and using it in the first place.
But technological solutions are probably necessary to some extent even if not sufficient, particularly when we're talking about communications channels where you're sharing something deliberately with one party but other parties are involved along the way.
I think the social structure of the 'proletariat' is fine, though the institutions like the news that support it are being eroded due to changing technology and the corporate clout.
The problem is social. A technological solution will not suffice.