My dad, who is 50+ years old, knew about Cambridge Analytica few months from now because of a documentary related to Donald Trump's win; he deleted his Facebook then and there.
However, I'm not sure that a majority of the people in India really care about the shady privacy permissions Facebook has slyly made them accept.
49% of Facebook's 2017 worldwide revenues came from the U.S. and Canada [1].
[1] https://www.sec.gov/Archives/edgar/data/1326801/000132680118... page 37
All users are just product to Facebook.
It could well be that Facebook's American corporate customers are more interested in worldwide product than domestic product.
And I use the word "exploiting" in a neutral sense here, because it can be good, in the sense of using all this data for your benefit to give you relevant and timely updates about your friends and surroundings, and let you know about things that interest you (i.e. why most people use Facebook today).
But, by its nature, that same data can also be used against you, exploited by marketers, advertisers, governments, etc..
So how do you get one without risking the other? How do you allow a social network to capture and analyze all this personal data about you - in order to return a valuable service - but then be totally (or reasonably) sure that your data will be protected and also not used against you?
Someone else mentioned HIPAA and other data protection laws that exist for medical data. I know regulation isn't a trendy topic in tech, but maybe there does need to be some clear codified rules about what companies can do with our personal/social data and what the consequences are for misuse or neglect.
There are plenty of decent business models between selling ads and pulling all stops to maximize ARPU [1]. Regulation could allow private social networks to flourish without abusing users or publishers.
To be honest, I don't see FB coming out of this. Their image is ruined, now they need a push and will start slowly collapsing. I'm betting on Yahoo-style slow decay.