And I keep hearing this all the time, if there are better alternatives than what are they? Facebook has thousands of employees, most just like you and me. They are not an army of evil people planning destruction, they're just optimizing their platform to better serve ads for both their advertisers AND the users. That's it. Where is this "privacy invasion"? What are they taking from you without your consent?
Most people don't understand the privacy settings nor do they comprehend the ToS (because the reading-skill level required is too high). So what does 'consent' actually mean in this context?
I feel you're being completely disingenuous in your comments here, so I guess you'd probably just blame the user for not educating themselves.
I'm fully aware that people don't care about privacy and abusive corporate practices, which is why it falls on the shoulders of the few that do care to come up with compelling alternatives, that respect users privacy. As you mention those alternatives would probably not be profitable (because you can't rely on ads). If they came in the form of new protocols (just like Email or SMS) and free software to implement those protocols it wouldn't matter as much.